I bought one of Lowe's "contractor grade" Twitch II's before they switched to polymer scales. It was my favorite folding knife. That is saying a lot, as I own about two dozen Benchmade folders -- not that they are bad by any means -- plus a few Bucks and Spydercos. But it was my favorite. One of those knives that just hit a sweet spot with me. I say "was" because I lost it. I was heartbroken! Here I had finally found "my knife" after a search literally for probably a decade of accumulating, and it became the first knife that I had ever lost! So I bought another one. But Lowes had switched to the polymer scales by then, and I was quite disappointed. Until a friend that I had recommended the Twitch II said to look at the bright side: it was even lighter than the aluminum. So I consoled myself with that. Until I found my aluminum scaled Twitch II literally HANGING by the edge of its clip in a hole in a coat-pocket. So now I have two Twitch II's. Since I've had a Twitch II, I have only carried two other one-hand opener, and only one of those on a steady basis. I carried a BM 550 for a day again, and the one I carry on a regular basis is the Flash II (I have three iterations of it, and rotate between them). The Flash II's and Twitch II's that I have so far have no more blade play than any of my Benchmades or Spydercos, they have, IMO, much better blade geometry, and the AUS-8 steel has consistently taken and held an excellent edge. So while I'm not by ANY means saying that you that are down on them have not received bad specimens, I (on the other hand) have received excellent specimens, and highly recommend them to anyone.
I will admit, however, that there is one other folding knife that has caught my attention since I discovered these SOG's, and that is the Benchmade Barrage, full size, if I can ever track one down. But I haven't felt inclined to look for one in the last couple of months, as I got really tired of seeing them advertised in magazines, but always showing up only available as pre-order anywhere I looked. But with the service I've gotten and continue to get with these SOG's, I'm just not hard-pressed to search for a Barrage.