The 1-2 shift at high RPM is terrible. It is a hit or miss. My tech couldn't nail it either, and it was easy when the transmission was new. It literally locks out and grinds half the time to the point my hand would slip off the shift knob. Before the last transmission was replaced I didn't recall having a successful 1-2 upshift. 3rd would lock out and grind until the revs went down to 2k or so. Even if I did get in 2nd, it would grind going in.
One of the members here had his synchros switched out for ones sourced from Ford Racing, and it shifts like a champ. However, it is currently cost prohibitive which is around $2k. Maybe someday... but not after getting my own pad haha. I don't even have sod and sprinkler in yet.
__________________
|