Wonder if anyone here switched from VT80 to TK6000, or vice versa, to be able to compare the two rackets. I've been using VT80 for Doubles. Will soon lose them to my kid. Wondering what I'd gain/lose with the switch to TK6000. I've been using BG66 UM at 24lb. Meanwhile, I'd browse through as many pages there are on this thread to learn more.