1. other than the para 3 scale which is a semi stonewash semi bead blasted finish, all the others models in my pics are heavily stonewashed. Flytanium don’t have other finish for the Ti scale. Depending on where you buy it, some vendor calls it stonewashed, some antique stonewashed, but it’s the same thing. My 4 PM2 scales comes from 3 different online knife shops, they all look the same.
2. For Spyderco scales, they work fine with factory screws(Flytanium Benchmade scales comes with custom screws). I never buy aftermarket screws for Spyderco. I find that the knife fitment and centering tend to follow the original, meaning if the blade is off centered to the right side, it’ll stay off to the same side after the scale swap. Be careful with installing the lanyard pin, it’s a pain. I brute force the first 2 with hammer but i decided to file it with sharpmaker stone for the subsequent ones to make it go into the titanium easier. Don’t worry about hurting the scale, worry about hurting the lanyard pin, because despite being steel it’s actually softer than the Ti scale. I actually saw the Ti scale cutting into the steel when im trying to hammer it in. For a sample of 4 PM2, a Para 3 and Yojimbo 2 scales, they works pretty well. Yojimbo 2 scale is the easiest to install. Took me 5min start to finish including locktite.
Be sure to check for straightness of the scale. One of the PM2 came slightly warped, but the screws were able to keep it straight, and it didn’t cause any centering issue. I guess having the steel liner as “skeleton” of the handle helped maintained the integrity despite warped scales.