CURRENT RIG: I currently play an Ampeg BA115-T. It sounded pretty good when I was first starting to play bass (I'm originally and still am a guitar player). However, I play bass in a hard rock/metal band and we're starting to record and play more. I purchased a used GK Backline 600 head and am looking to get a cabinet. From what I've read so far, getting a really solid cabinet upfront will save time and money in the long run. Basses: Jackson Kelly 4-String (Original 90's Model-P/J EMGs) Dean Zone 4-String (I love the natural thickness of tone and compression from the humbucker!) ADVICE PLEASE: I want a dynamic cab that will be able to handle a variety of basses, heads and performance situations. One that when the time and the $$ arrive I will be able to keep when I upgrade my head, and if I decide to add another cabinet it likely won't be replaced. I was looking at the Aguilar GS-212 as it would be tighter than my current 1x15 combo yet give more low end than a 2x10 or 4x10. I'm open to what experienced players have to say though. Something to keep in mind: Eventually I'd like to be running a Mesa Boogie Strategy or Prodigy head. Thanks in advance for your advice!