I've been using an Ashdown 900 EVO for about a year now. It's a great head, but it just isn't the tone I hear in my head and I'm not into lugging the thing around anymore. Weight isn't really an option, but the head is wider than my Ampeg 410 and that is soon going to be replaced by a Dr. Bass 2460, which is even thinner than the Ampeg. I checked the prices on some road cases that would house it and my rack gear and it was more than I wanted to spend due to the extra width of the head. I need a head that can be rackmounted. As I mentioned, weight isn't a huge factor as it will be in a tilt back road case along with my other rack gear with casters. As far as my tone, I play mainly rock, but I've been digging the Motown and Stax tones lately. I play mostly at home and once a month at church and they don't like people messing with the EQ on the Ampeg Classic so it seems to make every bass sound the same. I like warmth, but I also like hearing the unique tone of each instrument. I would prefer a head that translates well into recording. I've heard great things about each one of these heads. Obviously, the price of the LMII seems enticing compared to $1200 heads, but I more interested in what will work best in my scenario. It's quite a drive to test out the V12 and LMII so I'd prefer to know the general consesus before spending $3.59 a gallon to drive 3 hours round trip to Hollywood. I also have a friend who makes amps. He has built some amazing guitar amps and after he wraps up his '59 Bassman (for guitar), he offered to build me whatever I wanted as long as he can get the schematic and transformer and we'd just house it in a rackmountable shell. Depending on the head, it could be anywhere from $600 to $1200.