http://www.youtube.com/watch?v=XkMHLghPFew&feature=youtu.be

here's a video of it. it's like i'm bungee jumping/jumping on a trampoline =__=. and it takes time to get to the next floor above

Can you post your config file please.

Note: Smaller values result in less lag. Lift speed less than 0.4 may not work well for non spout servers.

autoPlace will automatically move players to be fully in the elevator

checkGlass will make sure all floors have glass blocks (at the cost of possible lag when starting a lift)

preventEntry will prevent players from entering an active elevator (at the cost of possible lag when lifts are running)

maxLiftArea: 9
lowScan: -1
highScan: 255
debug: false
autoPlace: false
preventEntry: true
preventLeave: false
checkGlass: false
floorBlock: GLASS
redstone: false
baseBlockSpeeds:
IRON_BLOCK: 0.5
GOLD_BLOCK: 0.75
DIAMOND_BLOCK: 1.0
STRING_oneFloor: There is only one floor silly.
STRING_currentFloor: 'Current Floor:'
STRING_dest: 'Dest:'
STRING_cantEnter: Can't enter elevator in use
STRING_cantLeave: Can't leave elevator in use

Just used your config and the lift ran fine. There is either server side lag which is causing odd behaviour. Use a plugin like lagmem to make sure it is running at a full 20 tps before and during the lift. There could also be a conflict with the settings from another plugin, like an anti fly plugin or a region setting for worldguard. I can't reproduce the bug so I am closing the issue.