Metron M10, M11 or M:EXOK, maybe I should post for everybody's benefit, since I'm the one who started the thread. I appreciate all the Atomic Knowledge here! I would consider myself a level 8/9 skier. Expert but not top expert. You could probably get me to go down Corbetts Couloir at Jackson hole, but not twice in one day. I've skiied the back bowls at Vail and Shadows at Steamboat. Generally when I'm out west I eat it all up, it's such awesome snow. But back east it's more often hardpack, frozen granular etc. I ski occasionally at Hunter, which has a lot of open fast runs and then at Mad River, narrow winding trails, little grooming and no snomaking. At Mad River the bumps tend to get undercut, the moguls on the steeper trails are tough unless there's new snow. I ski the glades, but again my biggest challenge is making quick turns in tight spaces.
When I first started shopping, I saw a glut of M:EXs on the market, then gradually I started to realize from people that the M:EX is more of a powder/off piste ski. I'm sure it would turn fine on Corduroy (what ski won't!!)... I don't think I can justify a pair of M:EX because I get so few powder days. So, I'm down to deciding between the M11 or M10.
I can't afford the B5 right now. My understanding of the M11 is that is has the B5 geometry, though not all the high tech features, therefore the lower price. The M10 has more modest geometry and I'm thinking the M10 would be a better "all-around" ski for someone like me that can't afford 3 or 4 pairs of skis.
I can get a pair of '05 M10 w Neox 412 for just over $500 including shipping. I'm having trouble finding 2005 M11s at all, but if people think that's a better choice then I'll keep looking!