Wrote this for the slick thread.
I have the 5m dlab, switched from previous Unit 5m model. Dlab is stiff, really stiff, even at 5,5 psi which I run for lowend. Goes upwind like no one and much better highend than the previous gen. although might have lost a bit of lowend or I just suck at it

Very light in neutral when going downwind in onshore conditions. Handles are great, A+, stiff as, but haven't smashed my board yet with them, so MMV. Middle strut valve is very stupid esp. in freezing temps (hardens in low temps and pain in the ass to open), airport less so, but overly complicated, der geermans seem to have a need to rethink everything, wonder how they have not reinvented a conical or two-part spoon or something to "improve" things

All in all, I love it, but I guess the availability from the factory is the problem now.
PS. I don't use the middle strut valve that much, can wait a bit to deflate it by its own. I don't find the handles heavy at all, might be just be me. And funny that I find the highend really good, could be due to aluula I don't know?