I originally intended to parallel two Orion TR 24/12/20's to cover the almost 40A 12V DC loads I could require (w everything on all at once ... unlikely though). As I was about to purchase them, noticed that there's an Orion TR 24/12/70 but it's not isolated. Since I've recently decided to ground my NEG bus bar to avoid having to break both NEG and POS circuits everywhere I have a breaker, wondering now if it doesn't simplify my system (and give me a little more breathing room, going to 70A) if I just went with the non-isolated converter since the rest of my system is no longer isolated. Any other PROs CONs with either of these options?