I have been using the Dalbello Axion 10 boots which are a 90/100 flex in Dalbello's line.
I like the look of the panterra's, the basic walk mode, and the ID liner. I started to see some sale prices of the 120's with ID liner for $300 which was tempting. If there is only one thing to nit pick its that the yellow/green color doesn't match anything in my ski wear.
Historically I have been a somewhat difficult foot to fit. When I visited a local dealer years ago he suggested Dalbello and that is how I ended up with the Axion's which fit perfectly. The Panterra line looks very similar (like an updated version) and I have read good things about the heel retension and wider toe box which is what I like about the Axion's.
Unfortunately I don't live near a Dalbello dealer any more and am 1.5 hours away from any decent ski slope so I am hoping to pick some expert brains here.
Now, I have been looking up threads on flex and how a boot should "feel" but I just plain don't know.
at 5'10" and 165lbs. I don't really notice any difference between the 90 and 100 flex positions. I can get my knees over my toes at either setting. So I don't know if I should stay with what I have or if I would benefit from moving up.
I consider myself an intermediate skier a bit on the aggressive side. I can handle most everything on the east coast, but don't really do bumps or necessarily have the best technique going down the mountain.
My friend ( who is a better and more aggressive skier) recently upgraded to Lange 130's which he likes a lot but don't know if I really need that much flex.
The Panterra 100's also don't come with the optional ID liner, and I know I could purchase one separately but that would probably cost more than I could get the 120's with the liner.