OK I have an Eminence GB128 which from what I've found is unrivaled in clean-to-medium gain situations. The problem is I play in several bands and when I got to higher gain is really mushes out in my closed back cab. I guess what I'm looking for a a 12" that has that same sweet clean to medium gain reaction, but that won't mush at higher gain. Next on my list is the Private Jack since I'm financially challenged. After that the big prospect I see is Scumback. Will that Private Jack give me what I'm looking for? If not will the Scumback deliver? Are there other alternatives I should be looking at?