ok, heres the full breakdown, to solve all your problems:
the Mo ships are your traditional line ski, just fatter. they are more symetrical than the MSP, which means they will ski switch better. they have extruded bases, which suck. they are slow, a bitch to wax, and soft. they also have your standard edge. they are solid skis though. they are a good bit softer than the MSPs.
the MSP is, in my opinion, a better ski. i have been riding my stls for about 2 weeks straight now, and i love them. they build quality on 4frnts is really top notch. anyway, the msp is quite a bit different fromt the mo ships. for one, its alot stiffer. it is also rediculously light. the bases on the 4frnts are top notch and super deep (i hit a rock or something, and somehow it wasnt a core shot. the scratch would have been core on any other skis.) anyway, prolly the biggest differnce between the skis is the sidecut. while the lines have a wide tip and tail, the 4frnts dont. they use a pin tail shape, similar to a lot of dynastars. this means the tail is alot skinnier than the nose. this makes the ski amazingly stable. however, it does inversily affect switch preformance, but with a centermount, you would not notice much, because, noones switch skiing technique is as good as thier regular.
So anyway, my vote is the MSP. the titanium mo ship is prolly more comparable, but they have very different sidecuts. that, and build quality are the real big differences
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