Hello
There are specific high quality boards for HL tanks, take a look here:
http://el-mod.de/index.php?topic=14&lang=deutsch&land=1
All in german, but people running the shop are very friendly and all of them speak a perfect english. All their boards are designed to suit our needs, be our tanks HL with or without metal gears/tracks/smoke & sound/ gun recoil, etc....and if you visit the panzerketten forums you'll find a lot of info about these boards.
Regards