Thanks for sharing your experience! I'm looking for a TK9000 to try so this was helpful to get me to try out the 4U before buying. One of the staff and the stringer tried to tell me to buy the 3U, and it just so happened that it was the only one in stock and the 4U already sold out lol.
I did a few of Shin Baek Cheol's, and the 3U didn't seem that much more difficult to move around than the 4U. Should have taken one for a knock-up - he'd never have known!
It's weird, because the 3U TK8000 is so slow... could be the 9000's shorter shaft keeping things tighter.
Been playing with tk9000 3u for a number of months now. Absolutely love it and i play it for both doubles and singles. With so much hype on the 4u, i decided to buy one give it a try. Both rackets are strung with the same string and tension 66ultimax at 28lbs. Honestly, the 4u is still a pretty decent racket that packs a punch but i still prefer the 3u as it juz gives tt little more power and tou it may be slightly (very slight if i may say) slower than the 4,u it didn't really affect my game that much in terms of defence and fast net exchanges. So i guess it really depends on your playing style. I like to play an aggressive game and wld lean more towards the 3u and it's really not as unwieldly as many tot compared to the 4u. The 3u is still very much my go to and i now contemplating of selling off the 4u