I think you could get back to the weight - but 30 seconds is extreme. What about 1.5 minutes if you're waiting 3-4 normally.
But it's moot - it works for you and I totally believe that - but this whole thing was an offshoot of your statement that training 3x week for an hour was basically the equivalent of spinning your wheels. And that's not true. Even applied to your type of training - you could kill legs on Monday, upper on Wed, Legs again on Friday, then Monday go upper again.....
I like your thinking there, I gave that a shot before, the reps suffered. I don't believe in doing volume or saving energy for the next set. Full recovery is an absolute must to be successful on the next set. Doing just 2 of them, I can't fuck this up!!!
I despise your last recommendation of frequency. I've played and philosophied on this for years and years on end. Not joking man. I've spent countless hours with a piece of paper and a pen at my table thinking up "ideal everything" for someone like myself.
The best I can do outside of hitting everything 1x week is sneaking in a bit of extra arm work, but nothing too hard or I won't be recovered the next "real arm training" and I can't do it every week.
I don't discard what you guys are saying 100% to not work for others, but I'd have them do stuff similar to what I'm doing now before having them give your method a try. It's all about educated guesses what works for others and for sure I'M not dead set on what works for me to mean it's best for others.
I'm liking this discussion though, been cool so far!
In the end, there is no perfect program for everything. Every split will have something that makes you say "shit, I wish I could fit this in" but then if you do that, will your next training suffer where you train other bodyparts? I can easily say "yes" to that.
Just doing GPP and sled work had me too tired to train the way I wanted for other sessions after.
Guess I'm just fragile, lol...