@Opiaswing, I'll try one more time to see if I can make myself understood by you.
You sound like you've taken this whole thread as a slight against strongfirst products and your perspective since has came across as 'you might enjoy something other than our product but you should still buy our product because they will result in more progress.'
No, I don't think any of those things at all. I look at StrongFirst as a system, just like I looked at Tae Kwon Do as a system when I was a student of it. You might not share my point of view on that subject, or you might simply not be interested in the StrongFirst "approach" but rather in picking out the pieces you like, and that's fine, but that's your perspective and not mine. And when I say, "that's fine," I mean it - you may do whatever you wish with whatever you find appealing to you offered by StrongFirst, and no one is telling you that you must do otherwise, but we are nonetheless telling you what you _could_ do otherwise, and trying to explain why we're suggesting what we're suggesting. We don't say you're wrong, but we also have great confidence in ourselves and our approach and that they have much to offer people. The whole of StrongFirst is greater than the sum of its parts, by which I mean that by embracing the system we teach, you'll learn more and benefit more than by just doing some/all of the parts.
We both know training with a cast iron bell vs training with a GS bell of the same weight would not yeild better results given all other factors remained the same.
The handle on my 32 kg bell is thicker and therefore more work/challenge for my grip. Learning to use a bell with a thicker handle of the same weight will find me stronger.
A brief story from my musical education: we often had the assignment, in my college music theory class, of completing a partially-written short piece of music. In this case, we were given a bass line and asked to supply the upper three voices. (4-part harmony is one of main methods by which music theory can be taught.) Iin the small school with small class sizes I went to, we took turns putting our homework on the blackboard, then the class and the teacher would offer their feedback as to what was good and what wasn't so good about what we'd created. And one day, after I'd put my homework on the blackboard, the teacher looked at it and his first comment was, "You missed it." I'll leave out the middle of the story as it would only make sense to musicians, but at the end of class, I went up to him and said, "Is your way really better than mine?" and he said, "maybe and maybe not, but the point of being in my class is to learn to do what I'm teaching you. When you're done, you can do what you like, but for now, you should try to understand why I'm asking you to do it the way I did."
There's a lesson about learning a system there that I believe in - you may not, that's up to you. When it comes to cast iron kettlebells in general and StrongFirst kettlebells in particular, I wasn't involved in the decision making about any of it, but I trust the people who created the system and who created the design of the kettlebells. As to whether GS or iron kettlebells, I'm content to say, as I said above, the same weight won't necessarily give the same results, and I've explained why in this post and in earlier ones. But as to whether StrongFirst kettlebells or someone else's cast iron bells, I know the effort that went into conceiving StrongFirst bells in all the details necessary for their manufacture, and whether those difference are large or small isn't something I choose to concern myself with. When I use them, they're one less thing I concern myself with because I know they're the best tool for the job I'm doing. The alternatives may be different a little or a lot, but telling you which of those is true is above my level of knowledge and expertise.
Better yet, the person who enjoys their training more is way more likely to be consistent in the long run and thus progress further over time.
Again, this is something I've touched on before so I'm repeating myself, but we are here for those interested, and your adherence to a program is on you. And if you decide that using a cast iron kettlebell isn't for you and you manage to complete Simple or Sinister or the Rite of Passage or your SFG certification by training with GS bells, more power to you - go for it. That still won't be what I'll recommend, but it'll still be great. I've owned GS bells, and I completed a GS coaching certification, so I'm familiar with the differences. When I trained GS, I used GS bells.
Besides, i'm sure if Strongfirst sold competition style kettlebells your approach to this thread would have been very different
And here, in little print at the bottom of your post, you're impugning my character, which I don't care for, thank you. I am living proof of the power of our system, someone who was very close to being in a wheelchair 25 years ago, and who has since achieved beyond any things I could have imagined before I started training the StrongFirst way.
There's an expression: There's no zealot like a convert. I'm also living proof of that, too, and if I rub you the wrong way, I apologize, but I do what I do here for reasons that I've tried to explain and I'm afraid I can't explain them any more or any better than I have in previous posts and in this one. If you think I'm all about StrongFirst making money from selling kettlebells, you don't know me at all, but hey, if that's how you feel, that's how you feel, I guess. All I can tell you is that, as someone whose life from age 16 on has been about teaching to help others improve, I'm honored and proud to be a part of StrongFirst, and very happy to continue to recommend StrongFirst programs, books, and yes, kettlebells.
Just my opinion and your mileage may vary.
-S-