I've just sold my Helix LT and I'm considering looking for a Mesa combo. The Mark IV is top on my list because I've always wanted one. I know they sound amazing. However I've also been looking at the Rectoverb 50 and the Stiletto Ace combo. How does the Rectoverb compare to the Dual Rec and, is it something that will need an overdrive pedal to give it a little push in the low end to tighten things up? As for the Stiletto, how saturated is the distortion? I've heard they're some what like a Mesa version JMP/JCM800 so will that also need a boost? And overall how are these amps regarded?