Thanks to TB I finally got my hands on a 400+, got it home last night and spent the day in my practice room across town. I'm using it with an Avatar SB112 and an old Carvin 4x10 reloaded with newer speakers. ...and it sounds completely stunning after 12 years of using a Hartke 3500. I simply love it. I love tubes (having several old tube guitar amps). And it's a great match with my playing since I play reggae...both ol' roots and more modern dancehall. But I do have some questions for the well versed amp people in these parts... 1) The amp came mounted in a HUGE Mesa shockmount rack. Too big for it to be regularly mobile unless I get roadies. Sooooo...I'd like to put it in a smaller case. BUT...my ol' four space rack case is too tight and in trying it out, it was obvious that it was getting too hot due to lack of ventilation even with the fan on high. I took it out and it runs perfectly cool without the case. Right now I have it in the case for transport and will remove it to play...but that seems maybe a little dicey, even though its all snuggly in the case and can't shift or get harmed. Sooooo...would a 5 space give enough room for ventilation (that side fan would still be mostly obstructed)? Six spaces is a bit too big for me to transport with the size of my car & the quantity of gear I normally carry. Are there other options for reasonably priced racks with ventilation? Any ideas or suggestions would be very helpful. 2) Also, for anyone who plays or has played this amp...I'd love to hear ideas/secrets/suggestions on how you ran the tone/vol. controls. I dialed in a pretty nice sound fairly easily but there's so much adjustablity, I'd love to know any tips y'all might have. I get the feeling I could take years to learn all the nuances of this layout. Thanks! -B.