UT99 sticky walls

In a map I'm currently making, there is a very deep and rather narrow well which is a passage from one part of the map to another. Players are supposed to fall freely into it, but they will sometimes "stick" to the walls of the well, as if they just touched a glue covered spot. I tried setting zone surface friction to zero, zone fluid friction to zero, using BlockAlls to keep players away from the walls, all to no avail. Is there a way to eliminate that wall stickyness or do I have to live with it?

It happens to players and to bots alike.

It happens more or less randomly, anytime a player or bot scrapes against one of the walls.

The Kicker idea sounds like a very good one. The well is 8 sided and 128 units in radius. There is nothing around it but solid stuff, so I can set collision radius and height to pretty much anything I need. I'll try it and report back, thanks

Well, the kickers worked. However, while fiddling with velocity settings, I stumbled on another solution. Zone off the well, put a ZoneInfo in it, set TerminalVelocity to 0 and ZoneVelocity to -2500 in the Z direction. The player will just fall straight down with no side motion, even if he tries to use air control. Thus, the player never touches the walls and never gets stuck on them. All you have to do is allow the player to fall an appropriate distance before reaching the zoned off part and everything looks perfectly smooth and regular. Thanks again for your suggestion, I'd have struggled with that problem for days without it, and probably would have given up in the end.