Nice video
@mafergut. I skimmed a bit to the cubes I was interested in

. I'm in the same boat as you with the 6x6 springs. I'll have to order a second spring set, because there's no way I'm taking them out of my awesome 5x5. Cubicle sells Yuxin 5x5 hardware sets for pretty cheap, I'm sure that'll be in my next order.
I have both the stickered and stickerless AuFu GT. I quite like the shades on the stickerless. They're not the best, but they're definitely good. Needs a darker blue would probably be my biggest complaint, if I was going to complain. The only downside for me is that I cannot seem to get my stickerless to move like my stickered one. The stickered one feels so nice, but I much prefer solving stickerless. I might have to take it apart, clean it, and lube it. But that's a big task...
I just got the dayan ridged mega recently and I'm not really good enough yet to warrant expanding that collection looking for a better one. Question, do you put your mega on the table when doing RU algs while solving? I find myself doing that when I solve. Not sure if that's good practice or if I should work on correcting that and keeping it in my hands.