What Fender are you using? I'm at a place in life where I just want it all, because I'm tired of hunting. The Fender tube stuff is the last on my radar.I use the Fender, but voted for the GK.
I still have two full SS Markbass rigs, but now have 3 all tube Mesa and Ampeg rigs, and I'm just loving it. Fender will be next to come.
I've heard great things about GK and have gotten close, but if I'm going to do SS or Hybrid, then I guess I'm fine with my Markbass rigs. The yellow makes me sad, but they are not lacking in any other way.