i ussually just chuck it in the drill finish with one side. then unscreww the yoyo from the drill. thats right with the yoyo axle in the drill. then i take the axle out put the axle in BY HAND. this is very important. if you do it on a drill it will overtighten. this happened to my protostar. got a new yellow one tho
Yeah you can use that method but be careful because you can mess up the axle.
Also I just remembered there is another method you can use. Find two nut that thread onto the axle, put one on about half way then tighten the second nut against the first nut, then attempt to undo the lower nut. This in theory shoud begin to unscrew the axle because the second nut will stop the first nut from undoing.