I am using about 12 slimevr tracks as well as the 3 for headset and controllers and ran into an issue where it will only use upper body tracking.

when i set slime vr too 10 it works fine but the trackers at not as accurate as i would like them too be.. so i am suggesting that the amount of trackers steam can use is updated too something more mordern like 50-100 (might be over kill but i might like too add my chair too the mix