Post Cycle Blues and Retaining Gains

I just came off my 3rd cycle and have a question about minimizing my gain loss. My most notable gains this cycle were in my shoulders. I made shoulders a priority and it paid off. I am mostly afraid of losing the gains I made on my shoulders and im asking if I can control what body parts lose gains. This may sound ignorant but if the body has to cut back on some muscle because of the decrease in test would it be possible to sacrifice another body part like legs in order to let the shoulders live? At least to some degree?

no