I just put a MT43 with the tubliss set up on the rear of my WR250 and really like it. I will be setting the Gas Gas up the same way. The only draw back for me was I noticed a little less braking traction with the knobby gone. This didn't bother me much since I do most of my braking with the front anyway. Does anyone have a front magic combo to go with the MT34 and the tubliss? Is the tubliss as noticeable of an improvement on the front? I have been riding mostly in rocky terrain on tight single track.