Zv.3 12s strap or not?

[sik99ranger]

I posted this in the sundown forum but no responces so reposting here for some reason i cant deliete the other one from my phone?!?!

Ok here's the deal I just picked up a pair of Z v.3 d2 12s and I'm puttin them in a slot port box 2 cubes per side tuned to 35.

I have 4 arc Kar1000.1bx amps currently only running 2 on my flatlines which I just blew one! Hence the reason I got the Z's!! So should I run one on each sub or should I run a pair of them strapped to each sub? I currently only have 1 extra bat but am all set up to hook up 3 more.

What you guys think it is manly for everyday use.

run one each untill I compete then strap or run strapped all the time??