Been tempted by the new AL Charges for a while. I've been through hell and back with my Wave, from the outback, cross-country and back through the commutes and daily grind. At one point it was my primary blade.
Still an excellent tool, I'd pick it over the rest, but its flaws have caught up with it recently. The worse steel just can't compare with a better knife, rendering it a back-up to my main folder. But more importantly, as solid as it still is after all these years, it's not the weight but the bare stainless finish that gets me. Holding it just now, I picked up my folded Wave and held in my hand vertically. Not a death grip, just holding it. Within a millisecond, I could feel it sliding down against my fingers from its weight. With a tighter grip it works simply fine, has for years. But the fact is, the weight and bare finish of the Wave makes it more inclined to slide around in your hand when trying to find a grip. The idea of using this thing for defense, was laughable from the start because of this. After a workout it's like my fingers have to tap-dance around to keep a grip on the thing to get at the opening hole, then there's getting a grip on the blade.
If the outer finish of the steel were machined differently, such as the grid finish of my new Alox SAK, I imagine the sliding problem would be decreased considerably but add to the cost. The finish has held up amazingly well for how much I abuse this tool, it could still pass for new thanks to the WD-40 treatments despite years of hard use, but I'd prefer a less fancy grid finish for grip. Type 3 HA is naturally rougher to touch because it's molded to the metal, even the smooth parts are easier to hold than steel and other aluminums. I never went near the TI models because I expected the same problems as with steel. But now, I'm waiting for something to go wrong with my Wave, because a HA-Charge would fix the grip problems and offer a better blade steel.
As much sense as it would make to change the finish and improve the Wave for the larger market...it's an unadvertised incentive to go for the Charge. Leatherman having to fall back on HA-3 because of the increase in titanium price is actually a blessing in disguise performance wise.