I have 3U MP100 currently, before I played with other two racket: ISO TIS SR and ISO TIS SS. TIS SR is fast and head heavy, but since it is too light -- only 81g, no very powerful long smash can be produced (if someone really can make it, I guess the racket will be broken soon). TIS SS is even faster since it is not so head heavy and has stiffer shaft compared with SR. However, TIS SS is not head heavy enough to produce powerful long smash, only perfect for quick drives in double actions. So I turn to MP-100. I selected a 3U version in order to have the similar weight as TIS SS. But MP-100 is totally different: It has very heavy head, sometimes I even wonder if this is really 3U racket... The long smash produced by MP-100 is amazing powerful and fast, but the consequence is that my arm get tired very easily after a couple of minutes. Also the heavy head of MP-100 really prevent me from hitting lots of tricky shots. I nearly have no time to react in order to return a smash to the back line of the court. In a match, I feel most of my energy were not used on shots or running instead of moving this racket. I think there must be some other rackets that is just enough head heavy to produce powerful smashes while still give me good defense. So there is only two top line racket left between TIS SS and MP-100: TIS SX and 3U Ti 10. Since lots of people are praising Ti 10, I'm thinking of getting this one. But I'm still not quite sure about how a 3U Ti 10 feels like compared with a 3U MP-100 and ISO TIS SS, does anyone have some experience in this? By the way, I'm 60kg in weight, so I never tried to have a 2U extra long rackt, but CAB20 2U still feels good for me since it is normal length.