Mine is only crunching in 5th, which is fine because I never use 5th 4th to 6, if you need 5th you are driving too fast
shame mine does it on 6th :/ Say about 4k Revs in 4th straight to 6th and you can hear it crunching it
Slower speeds under 60mph and it slots in perfectly fine.
Ahh not had that tbh, only time I noticed it was when I was 5K+ in 4th going up to 5th... just enjoy the crunch or stop canning it