Honestly, Resinator is designed to be a all encompassing bloom additive. Technically you are supposed to use Resinator starting at week 3 and using it until the end. You start at 4ml per gallon and bump up to 8 the last couple of weeks (check out their feed schedule on their website). What bloom booster were you thinking about using?
4ml of ROCK RES..... have you tried it? It will burn the Shi* out of it. After long testing starting at week 2 and 2ml per week up to week 7 has had best result for me.