After all the TB forum positive comments, I've decided to go with Avatar cabs. They will be powered by a new GK 700RB-II head. Having used a single 115 in a combo amp all my life, I'm ready to try something else. Here are the options that will work within my needs and budget...SB112 + another SB112 or SB112 + B210. I will use a single cab (SB112) approx 75% of the time, but will need the second cab when the extra boost is needed. Playing mainly old-school rock and blues with a Fender Jazz. There is only $10 difference between the two choices. I know you guys have opinions...lets hear 'em.