Quark VS. MGM?

[Sower]

Well guys, I really appreciate the info so far. Although I'm not sure if it's helping me or making it more difficult :)

Anyway, I have run this system and it works great but I had been running it with my MM ESC. It's been acting funny lately and it started getting me nervous so I pulled it. I'm not sure what kind of amp draw I'm getting and I guess that's my biggest unknown for this whole deal.

On top of all of this, there are 3 Quarks on ebay this week and no MGM's available. Plus, I have no idea when they will be in. One of the guys on the forum has the 8s MGM 160 amp version that he'll sell me, but I don't need that. If anything, I think I would need the newest 160 for $275 or maybe the 224 for $375. But again, Mike is out of stock and I can't find out when they'll be in.