I've had my Maru 4x4 for over 2 months now. I solve it alot and have lubed and loosened the tensions a bit. The cube is pretty bad. The outer layers aren't really an issue. It's the inners. They are super rough, bumpy, and just crappy overall. I've sprayed with CRC and Maru lube and it didn't make a difference. Any way to make it better?
(Could it have been a B grade from china? I noticed most Maru's had better middle layers in videos. Their's was packaged differently than mine. I got mine from Cubedepot.)