You're not gonna hit it perfectly every week,

but overall if you're shooting for it the gains are gonna be unreal.

Fitting those in 4 days is hard, 5 days is good.

5-2 work-rest split or 2-1.

Rarely if ever split work-rest evenly 1-1, 2-2.

Rest muscle groups appropriately, don't let leg soreness get in the way of upper body work & vice versa.