@Kozushi
OK, I'm a little confused. You've added the DL to S&S? What sort of volume? Are you doing the same amount of swings, now with DL added on top? Or did you reduce KB volume to make room for the DL? In any case, my question on the order is still the same, would you have similar comments but in reverse if you had focused on the DL for a couple years, then addd swings?
I think the question and people's experience is interesting. Should people focus on one quality first, then the other, if so, in what order? Or should both be trained concurrently?
S&S 2 days a week (the minimum amount) often on Saturday and Sunday actually, days I don't do judo. Otherwise it's judo 4 days a week and deadlifts, presses and ring dips every day - these three don't take much time; they're moves not a program, the deadlifts and presses are only for limit strength, the rings a bit for conditioning and other things I guess to help balance out the deadlifting stresses.
My case was 2 years of S&S before even considering deadlifts at all, and since I was able to instantly deadlift significantly more than my bodyweight without hurting myself, I'd have to assume that S&S prepared me for that, and I think the TGUs were part of it also, not just the swings. The TGUs teach time under tension which counts for heavy lifts.
Speaking more broadly on the idea of doing one thing to a certain level, then using it as a base for another, leaving behind the first thing, then progressing like this through different exercise routines - I think this is the right approach. I see this a lot in people who get good at exercises and sports. It is even true for judo - if you have a base in some other things (like BJJ, Karate, wrestling, weightlifting, yoga, etc...) you are not really a "beginner" when you start judo. My wife started exercising with running, then got into yoga, then got into TRX, and now she has started lifting real weights too. There seems to be a progression there. I wasn't starting from scratch with S&S either since I had spent a lifetime with chinups, walking, hiking, judo.
I've had a hiatus from S&S for the past two weeks partly because I'm running an experiment trying to see what it's like without it, and partly because we have some guests over and it's inconvenient to take up the living room for S&S these days. The deadlifts, presses and ring dips take no time nor special dressing for them, so I can do them daily no problem.
I don't know if I'd be singing the praises of swings now if I had started with deadlifts. Clearly, I don't care about asymmetrical load or power or anything, the weight of the 350lbs deadlift trumps anything possible with a 32kg kettlebell, I don't care what kind of pulling movement we're talking about 1 handed, 2 handed or anything. Regarding swinging a 40 or 48kg kettlebell, well, there is virtual weight going on, but it's a much more awkward and time consuming exercise than deadlifting. Deadlifting is safer, simpler and much much faster to do. There are things going on with coordination, timing, cardio and breathing with the 100 kettlebell swings that are priceless in their own right and not reproducable with the deadlift. Can you get most of these out of skipping rope or running - maybe a lot of them. At the end of the day the deadlifter has much higher limit strength than the swinger, and cardio can be gotten from other things besides swings (like cycling even). But, I don't like cycling, running or skipping, so I'm doing swings.