Might be an unpopular opinion, but even numbered nxn puzzles should NOT have the GES V3 system. I have the 251 which came loose, and not at an even tension. I hate trying to do anything with it. The wrench is hard to fit into where it goes making any adjustments a nightmare. Find an even tension, and then tighten and loosen until desired tension. Gave up 20 minutes in and just took it apart to do it, which meant cleaning it too. 2 hours later, I was done. Or was I? Nope something felt off. Repeat the nightmare for each spring set until you are happy. Not sure if V4 or V5 would work either given how tight a space is for the wrench. I would imagine their 4x4 would be a similar nightmare. I understand now why even though Gan is a loved brand, it is not recommended for a 2x2.
I don't have a 3x3 with V3, but I imagine it would not be as bad, as there is no fighting with the wrench. I also appreciate that you can not strip a core, just a nut.
I never really understood why people are crazy about how fast the V4, and V5 are to change. Who cares, you only are going to use one setting. Now I get it. It's not how fast you can randomly swap settings you won't need. It's about easy it is to find your settings, and replicate that when torn down to clean.
I don't have a 3x3 with V3, but I imagine it would not be as bad, as there is no fighting with the wrench. I also appreciate that you can not strip a core, just a nut.
I never really understood why people are crazy about how fast the V4, and V5 are to change. Who cares, you only are going to use one setting. Now I get it. It's not how fast you can randomly swap settings you won't need. It's about easy it is to find your settings, and replicate that when torn down to clean.