I see what you’re going for. I like it your thought process. It’s horrific.
Couple of things, though.
First, Greg only inflicts the short rests on us with percentages under 75 or so, and most often in the 50-65 range. Granted you’re talking about 30 seconds initially, but then going down to 15 is pushing it, I think.
Second, you’re going to be doing it to yourself three to four times a week. We only suffer it once, and on a different lift each week AND with varying sets and reps each week.
Third, our AMRAPs are done without the short rests.
All that being said, your idea might work. It’ll just be horrible to do, and I’m not sure the payoff will be worth it. You’ll be so focused on hitting the times technique will go out of the window. You might also find yourself a bit too burnt out to do any useful assistance.
I think the best advice I can give you is to look at what you want to achieve and how this setup would be best applied to further that. So, if you want to find out if it’s possible to do, have at it. Otherwise, look at how you could modify it to work better.
My take is that the short rests have a definite place in training, and one aspect of that is simulating maximal effort work with low weight. Trust me when I say that the last sets on my short rest days I strain as hard as I ever have for a max. Except, my body doesn’t get beat to hell. Another aspect is specific conditioning, I guess. When you regularly work through five and 10 second rests on a main lift, you find yourself able to move through your other days much faster and you tolerate a fast paced meet better.
I think this setup is best used when you wave your loads by lift and not by week. Or, if you do it by week, do it for one week out of the three when you’re handling lower percentages (I wouldn’t go above 70).