The MA's normally run at 2 ohms. You've modded them and they run at 1 ohm. Is there any way they will run safely at 0.5 ohm on a strong electrical daily? And what kinda power would you expect to see from them at 1 ohm on a 12 volt system?
I would not reccomend running them @ .5 for daily driving. They have ran fine for competition for shorts burps and even deathmatch. Never tested power output of them, just go by spl numbers.