2 runs of power sting HPM 1/0 front to back batts....1 34/78 front 2 D31T back ...both back batterys are grounded to seatbelt bolt...big 3 done up front..1/0 ...will be putting 270 amp alt from MM before i add the subs......i am asking should i run this amp at 1ohm or .5 on 2 15's DAILY i think it is stable at 1ohm correct?