So I'm sure a lot of you already read my thread titled "Glock perfection, does it really exist?" I really want one, I have an XDm and an M&P by the way, I'm an equal opportunity collector! At any rate, I shot the Gen 3 22 and LOVED it. Due to panic buying, I haven't been able to find one anywhere, any generation. I found a Gen 4 online for $539 including shipping. Would you jump on this or just wait? I've seen some used on armslist but they were only slightly less then new, around $475. Is the 4 that much different? Obviously the texture on the grip and the backstraps. The new spring in the Gen 4 helps a little bit more too right? Need some advice please. I'm guessing with the FFL transfer total would be $570 or so.