Problem with CSS is that if you're in a Elevator / Standing onsame in HL2DM - i heard it's an optimization by Valve for multiplayer
moving entity / physbox you character is begining to shake upsidedown
and left to right, i've heard it's some problem beetwen
server<->client where the player poisition should be.
So you can't make any real elevator in CSS without the horrible effect.
Blame Valve :smile: