adding fina, couple questions.

Doing 500mg test e for 13 weeks, in week 9 currently, want to add fina in here at the end for some bf% drop and some hardness. Test is great but I ate alot and I feel I gained lots of strength and lots of mass(lots of fat too :( ). The fina is 152mg/cc concentration, hurts like hell. My bro shoots one cc every 3rd day. I have never used fina, should I go one cc every 3rd day? or more like 1/2cc every 2 days. Really close in comparsion but I don't want fina to bite too hard(as I've seen it do with fellow friends thinking they are god). So total use would be roughly 300mg/per week or 225mg(with the 1/2cc every 2nd day idea). 6'2 245lbs 18%. Any help is appreciated. Btw, my diet is dead on here in the last few weeks with lower carbs, more protein. Currently started an ECY stack also at week 9 and it is working well. Don't wanna get bigger, just want my 19" arms to look as good as smaller guys with 16's that are more defined.

your best best is to shoot 1/2cc ED. about 70mg/ED. fina can be shot ED or EOD but based on personal experience and lots of my friends experiences ED is much bettter. i had less modds swings and when i shot it ED