While I'm here, let me add that every cycle (or sooner) you should remove exercises that aren't working for you but add ones in their place that might be more "smooth and fun". I removed glute bridges because they were awkward to setup and didn't seem to target my glutes. Instead point two:
Point two: you may add repeats of previous days iff:
1. Those muscles aren't still sore between their day and the additional days they're added.
2. You have time. You can do them as much as you want given 1 above but remember that they will be building slow-twitch muscles with a lot of repetition. Your goal should be to build both slow and fast-twitch muscles (type I and type II). One major reason is for aesthetics. Also fast twitch are necessarily bigger as they have higher max potential, their creation helps with bone density, and tendon strength.
So I added shoulder dumbell lateral raise to leg day, all three days actually, but specifically palms back forward leaning type which supposedly works the lateral deltoids which are sorely lacking on me. I thought all this time it was because of genetics or frame but I've never actually targeted the deltoids correctly. My traps are huge, my pecs are great but the delts need tlc.
