I bought the GK-1001rb-II/Neo212 combo in '09 and now that I may be getting a second cab in the next couple of months, I had my eyes set on the Mesa Powerhouse 410. Right now I need something that works well with Drop A tuning. My direct questions are: Do the GK Neo212 and Mesa PH410 mix ok? (I'm not concerned with the 2nd cab utilizing the bi-amp feature on the 1001rb) and can Mesa's 410 handle Drop A well? Thanks, folks.