well,silicon glues up my cube but vaseline smoothens it.I don't have any cubes that have been "destroyed".Maybe Vaseline sold here (s'pore) is better.I tested silicon and vaseline on two seperate cubes and the Vaseline one is smoother.I just don't get what you guys say that Vaseline is bad.It works 4 me though.
Vaseline eats up your cube. Don't expect yours to last long.