Congrats on the new RDD CF,
Pompous
--nice pickup! Your relation of others' and your own reaction to the flipping action had me get mine out this morning for some fondling and flipping as I pondered my thoughts about that. I have posted some on that subject with others here in the past. My take is that while the RDD doesn't open with same casual assuredness of my two F95's, F3, 111, or NeOn UL, among my others, it still comes out dependably with a somewhat different technique.
I've always disliked flippers that depend on overly strong detents in order to effect that "out like a rocket" flipping action (think, many ZT's, for example), and I'm attracted to those that rely on optimal engineering design proportions for a sure deployment. I've also felt that one measure of that is how easily one can depress the flipper tab and have the blade come out assuredly, and those aforementioned knives of mine certainly fulfill that standard. That's not the case with the RDD, perhaps due to the flipper tab being so far rearward of the pivot as
mikomonday
has previously asserted. However the technique I've adopted with that knife for uniformly successful flips is to light-switch
without pre-loading but a making sure to fully and smoothly follow through. It doesn't have to be hard or overly aggressive--I just put my middle finger on the tip of the clip and pull back easily from there. Again, follow through is the key. The only other thing I've found is that the action of the RDD runs best with a light oil (W10 NanoOil for me), not gunked up with grease.
Anyway, I got my RDD out to fiddle with along with the 100NS it shares a double sided pouch with, ending up with the Tabargan in my pocket for the first part of the day. I tend to think of the latter as a big knife and the former as smaller and more delicate, when in actuality the RDD all but matches the 100NS in blade length (a full 95mm+ like my F Series knives) while being so much lighter in hand and pocket. It's a lotta knife in a tight, beautiful package.
BTW,
Mr.sig239
, after our discussions some time ago about getting your RDD disassembled, I'm glad you've got your opening issue figured out.