I've been kind of out of the loop for the past 2 years but am recently getting back into cubing.
I'd like to upgrade to a magnetic cube but I use Roux which contains a lot of M-slices where you're dealing with twice as much magnetic force compared to side turns, is this an issue? Would any of the three main options (GTS2-M, Air UM, Valk M) be a better choice? I have not used any of these in their non-magnetic versions, but I have tried a GTS2-M and liked it. I know the Valk M is advertised as having somewhat weaker magnets, not sure about the GTS2-M vs. Air UM magnet strengths. I'm not a high speed solver and probably a bit sloppy with my turning, but I do appreciate a really nice feeling cube. Cost is not a factor.
The different spring options in the Air UM is interesting but I'm uncertain how this differs from adjusting tension screws. Basically, if this helps guaranteed that I'll find a setup I really love then it's attractive, otherwise it may just be extra cost for little added value since I'm not a pro.
Thanks!