Hi I'm hoping there are some people out there who have some hands-on experience with the tech21 Landmark 300 or 600. Tell me your likes, dislikes, problems, unexpected suprises of these amps. also could you owners measure the rack depth of yours and weigh your amp? I think tech21's numbers on their website are WAAAAAYYY off they said the 300 is 16" deep when I measured it to be 10" rack depth?!?! anyway I'm hoping the 600 is not twice the weight of the 300 like they seem to indicate. thanks EDIT: after rereading my above post I think I came off a bit negative? I own and like very much my RBI preamp. I am STRONGLY considering a landmark 300 to replace my SWR 350/RBI rig. More tone options. I just wanted owners or others who have any information positive or negative that may be of great interest to myself especially. to help sway me to or away from the tech21 'heads'.