use null movement script. your problem is probably that you are hitting S and W at the same time when your fingers try to make the swap to fully hitting S.

heres a diagram of whats probably happening

you going up the stairs with someone chasing you:
- W -
- - -

you the moment you realize you can stair stab this guy:
- W -
- S -
at this point your character has stopped moving completely meaning your moment wont transfer on your next keypress, and instead you have to start from zero velocity.

you fully committed to the backpedal:
- - -
- S -
now you're ramping up from 0 velocity to max velocity instead of going the same velocity you'd be going if you counter strafed correctly

null movement script should stop you from halting your own movement

god player

should look into playing ugc 6v6 first probably. genuine interest in learning more from others though. good work ethic

hi
sniper main HL player looking to play actual tf2
2nd most played class scout, ugc silver experience 6s and hl
looking to improve in all aspects via ESEA

add me on steam:
http://steamcommunity.com/id/miaounu

my team this season got pwned so now im lft

i taught him everything he knows. genius player. surpassed me in power level

no thanks

http://i.imgur.com/chf3m7E.jpg