Has anybody skied these two skis to provide a direct comparison? Searched all over the net and found nothing.
What interests me is their powder and mixed conditions performance.
I can give minor help. Own a 186 Lhasa Carbon, skied one partial blue run, 6" of new chop, on a Katana a couple of years ago. don't recall the exact length but 180-something. My memory of the Katana was a really fat heavy Mantra - beefy, but quicker to swing around than you expect, damper and less metallic than my Mantra at the time. A strong ski with a forgiving side. Didn't like it in bumps but don't recall why. Nice ski, but I didn't fall in love. Not the right conditions for it, though, and probably the wrong construction for a lighter skier, so YMMV.
My Lhasas are a totally different feel - think Watea 94's vs Mantras - lively, light for their size, much easier to carve around on groomed on than I recall with the Katana. Flexier in front. Better in bumps than I remember with the Kat, but neither of these skis are great in tight places. The Lhasas ride up in crud and pow more, rather than smash through it. Not a particularly damp ski in weird snow, and didn't feel as rock stable in chop as I remember the Kats', but neither ski will fold on anyone. More a dramatic difference in feel than in performance IMO. But I haven't found any bottomless pow for my Lhasas; that's where the rocker should really shine.
Conclusions: Didn't think about buying one, did buy the other. Full review of my Lhasas here a few weeks ago.