Good to hear the car is having the 5* treatment.
The gear linkage was a constant problem from the moment i got the car.
It once left me with only 3rd and 4th in the middle of the lake district.
When I sent you the car, it was the best I've ever had it, I could always get every gear. But it sounds like the car didn't enjoy travelling over there. Sadly i have no useful advice, apart from, fiddle with the cross gate, and when it works tighten everything up so it doesn't move.
Best of luck, and keep up the good work
Andy