In this article written for chest specialisation, they provide a routine in which they advise to perform.
It says to do 3 days for chest (day 1 Monday - Activation, day 2 Wednesday - Strength and day 3 Friday - Hypertrophy).
If you are not looking for strength increase, but rather size, would it make more sense to do 3 - 4 hypertrophy days a week? As my shoulder is a bit jacked up and don’t want to be straining it with ridiculously heavy weight in the mean time.
As my shoulder is a bit jacked up and don’t want to be straining it with ridiculously heavy weight in the mean time. [/quote]
The program you linked to doesn’t call for “ridiculously heavy weights” on the strength day. It works up to a heavy set of 3-6 not to failure. If your shoulder can’t handle that, then you should probably consider spending a month or so prioritizing shoulder health, not chest size.
But like dagill said, that program would deliver everything you need if you follow it as-is. Almost every single “chest specialization” program uses at least one heavy day plus at least one lighter day, because that’s a very effective way to focus on a bodypart.
The only other option you might consider is using some general tweaks to improve your current chest training, instead of a full-out chest specialization: The Best Chest Training Tips, Period