Good knives, Benchmade's own team designed these 'WARN' models. Their D2 blades are strong and the one I owned came out-of-box very sharp. Mix a set of very strong G-10 scales with the assisted Axis lock and you get something worth owning.
Yeah, the scales are a little on the thick side, but a nice touch is the flat spot right under the clip on the G-10, which makes it easy to get the knife out of your pocket.
As a note: these are basically the same as the regular Valox-based Barrage models, except for the G-10 scales and Tanto D2 blade.
Lastly on the 'Relief' grind on the spine I don't know the answer on that one.