as long as you dont get too extreme with the bulking and cutting id say your fine. i mean dont try to go all out bulking for ten weeks eating everything in site then just switch to a strict low cal diet for the next 10. maybe keep a good clean bulk diet the first 10 then slightly lower the cals and switch drugs. say your doing a 20 wk bulk/cut cycle something like this:
1-14 test enth
1-10 deca
1-5 dbal
8-18 eq
12-20 fina
14-20 winny
15-20 prop