So I’m pretty new to the gym and on my second week of GZCLP. I’m curious what the reasoning is for no AMRAP set in the tier 2 exercises. I was under the impression muscles grow more when pushed close to failure, so why wouldn’t you want to do that in the low weight/high rep sets?
Also on a slightly related note: can I do the tiers out of order? If for example the squat rack is taken, can I do my tier 2 bench press first and my tier 1 squats afterwards or is that not recommended for some reason?
Responding to this specifically - this generally seems to be true according to research for hypertrophy, but it’s worth noting that GZCLP is a powerlifting program, not a bodybuilding program, so the emphasis is on strength, not size. The T2s are there to support your strength on the T1 movements. If you want to build size too you can treat GZCLP like a “powerbuilding” program by pushing the T3 movements, which are more appropriate for hypertrophy work.
Also, if you haven’t it’s worth reading Cody’s original posts on the GZCL method for more of the context. He even addresses your specific question, where he says AMRAPs are okay on T2s but to use caution: