fina + deca, prop?

im three weeks in on a 75 eod fina cycle, am blowing up but want to add some deca, and prop,

ive read that deca and fina dont mix well, if this is a lie, then recomended dose

im thinking 300mg/week deca (i have 300mg ttokyo)
and 100mg pro eod

any suggestions

I'd up the deca a bit, even if your shotting 1.25 CC's

I did hear that about deca and fina, but see what others say