I love the wave opener. Currently own Emerson Commander, CQC8, Spyderco Delica 4, Endura 4, P'Kal, and some waved Kershaws(worth noting that the quality of the Spydercos is by far the best). The Delica 4 is my EDC. The Delica and Endura 4's have nailed the lightweight, small in pocket feel. I've been waiting for a full flat grind with a wave and compression lock for years. Just got the Tropen yesterday. It seems like a great combo of all the things I've been looking for. The wave works with stunning perfection. Amazing blade shape and steel. Beautiful scales. The smoothness of opening is beyond anything I had hoped for.
The compression lock is my favorite Spyderco locking mechanism. I can see how it presents a problem for slim profile handles. i.e. the Para Military with it's wider profile doesn't need to worry about exposed blade. I wouldn't mind a back lock version of this knife, but it would destroy the epic smoothness. Perhaps a frame lock?
I managed to cut the side of my pinky on the heel of a ZT452 while digging in my pocket for keys. In that case the blade comes very close to the edge of the scales but dosen't extend beyond. After looking at the Tropen, it seems likely that a similar accident could happen. Won't know till a few seconds after it happens
I need to carry it for a while to see if the exposed blade is an issue. Worth the risk/kinda wish there wasn't a risk though.