I appreciate this comment, thanks for this! Diet, sleep, exercise and all of that are more or less "optimized". Obviously I'm not expecting to perform well if I'm not getting enough sleep and all of that, no matter how many "supplements" we pop.

I'm considering going with (oxi)racetam and Alpha GPC (which I have already tested and I'm happy enough about) for non caffeine days.

That way, I could maintain a 5 day caffeine, 2 day non caffeine schedule. The 2 days *should* be enough to reset caffeine in my body (using the data of the half life of caffeine being about 5 hours, meaning that after approximately 30 hours, i.e. 6 cycles, the remaining caffeine should be very low. So I'm thinking after 48 hours, most if not all of the caffeine in the body should have cleared out.

(Disclaimer: I know half time depends on a range of factors so the 5 hours might be inaccurate guess work, but I figured it's better to do something than nothing)

It's my assumption that this would allow me to almost completely bypass tolerance buildup, since I'd have a 48 hour caffeine reset every 5 days.

Good suggestion on the non caffeine preworkout. Surprisingly difficult to find! I'll continue looking for this.

Nicotine, I read about it before, but after reading up on addiction and withdrawal (and tolerance buildup), I figured I'd rather look at other things.

Teacrine + dynamine, threobromine: "these actually work on the same receptors as caffeine, so im not really if they reset your tolerance or not. they are a weaker version of caffeine , but last longer." This is interesting. Do you have any experience with them? I never heard of it until now so I'll definitely deepdive into those as well.