its fine to stack 3 or 4 sarms.. as far as bulking goes, this is what i would recommend... you can get everything you need at esarms.com
1-12 rad140 (TESTOLONE) 20 mg day dosed once a day in the a.m.
1-12 lgd-4033 (ANABOLICUM) 10 mg per day dosed once a day in the a.m.
1-12 S4 (ANDARINE) 50 mg day... split doses... 25 mg in the a.m. and 25 mg 4-6 hours later
1-12 mk2866 (OSTABOLIC) 25 mg per day, dosed once a day in the a.m.
9-12 M1 MK by Banned Nutrition (esarms.com)
Mini pct 13-16
M! MK by Banned Nutrition (esarms.com)
Cardazol by Banned Nutrition (esarms.com)
gw-501516 20 mg day