My transmission has been rebuilt and I also replaced the clutch. I have a B&M short shifter. If I shift as you would in traffic, 1st to second is easy and smooth. 5000 RPMs and up, it gets very hard to pull it into 2nd and shove it into 3rd. Does anyone else experience much harder shifts as the torque increases or do I still have transmission problems? Any input or ideas will be greatly appreciated.