My Skill is Beginner, but I have played with several rackets. Having used MX80 3U in the past, though not entirely similar, I find MX90 3U & VTZF II 4U does not differ too much with MX80 3U. I don’t find myself adjusting, if I was to switch between those 3 in game, those three need to be using same string & tension though. I mainly play Doubles.
