I bought a DA 4G a while ago, tried it for just a few hours then returned it. Now I bought one again, going to try it more and see if I like it. I do like the lower weight but the coating on the 3.5G is so much better, much harder to lift the 4G. The swithes in 4G was harder than the 3.5G, I like light switches but probably can get used to it. One big problem as usual with DA is the thin mouse feet. On my DA 3.5G I added 0,5mm skates made for the 1.1/3.0 mice, just put them on the stock feet and it worked great. But since the 4Gs LOD is much lower I want to ask you guys if someone here have done that on the 4G, or maybe if it's better to remove stock feet first?