M slices on Magnetic Cubes??

[The Torrent]

Hello, I've never had a Magnetic cube before, and thinking of investing in a Gan Air 356 SM. But whats this about not being able to do M Turns with them?? Why is this not possible, what exactly happens, and how much of a issue is this, because i currently use m turns to do Z and U perm.

 

[DGCubes]

Not sure where you heard you can't do M moves on them. It's just that it takes slightly more force than it does on a normal cube. I've never personally had a problem with it though. It's probably the only downside magnetic cubes have (and it's very minor, if it exists at all); other than that, they're leagues ahead of other cubes.