Im sure Gaijin has been adjusting the Panthers engine lately which has shifted some of the lower rpm sounds out of sync. basically i have adjusted some lower rpm and turned down the volume on the exhaust muffling while adding a small 10 sec loop of panther gear changes and revving.
While it would bee nice to have the gear changing sound match the actual ingame gear changes, There unfortunately is no such trigger for me to do so. Shame cos the shifting or the engines is 30%-40% of what makes the sound so unique. So i think its plausible for me to just add the sounds gear changes regardless of whether it actually changing gear anyway.
It shouldn't be to obnoxious and repetitive i hope, im aware of how annoying sound loops can be.
Think i will release this when the next patch comes.