i never did do the beast and then sarms..i just ran prop,tren ace and beast...have some sarms now and going to run it in about 3 weeks along with some bridge before my next cycle
I've done a very similar scenario myself: prop, tren ace, m-drol (same as beastdrol? it was awhile back..) and then followed with pct including sarms. You'll like how much gains you keep using the sarms for sure.