@Strong Rick yes this will be my third time going for Simple. When the book first came out I did S&S exclusively for most of a year, working up to swings with 48 and tgus with 40. Then I swapped for a variety of reasons.
I recently "reclaimed" Simple a few months back, but truth be told my form was sloppy and I was rushing. I was letting the practice take more than it gave. I then switched around programs for a while looking, unsure what to do. I had somewhere developed the whole "workout" mentality again and kept burning out (plus so issues in my work life needed seeing to, which have been settled now).
To be honest I really enjoyed the swing with 24kg, as they were pretty reserved for me, so the bell was going high enough to almost be turning the movement into a snatch.
I think stepping back to the beginning of the program really helped, although I have moved up weight quickly, I was never pushing too much.
I'm now trying to keep my swings more aerobic, mainly by doing them on the minute. I did that today and only spent 1min 12 seconds of the whole training session above my aerobic zone (don't always use a HR monitor, but sometimes the data is nice).
I'm sort of sad to be moving back to 2 weeks of PTTP from Monday, but I better stick with my plan. I find it too easy to get derailed.