Simply, you can ride, stand, twerk, dance, sit, squat, etc. on top of moving vehicles (Player or NPC driven). If they stop fast or hit something you WILL fall off.
Added new command /usurfh which attaches you to the vehicle much harder making it much more difficult to get knocked off. Less realistic, but some like that.
Also fixed the bug where if you get knocked off and reattach, you could be thrown off immediately.
4/19/2024 - v.1.01
Fixed a use case where if the driver took off too fast the player wasn't attached completely and fell off.
Also, reset velocity buffers if you jump off so the next time you get on it starts fresh instead of pitching you off. Trust me, it's a good thing.