Requesting help on a collision model (improvement)

[EchoRanger449]

http://www.halomods.com/forums/viewtopi ... b9ae2a1447
go there and check out: Simple Tutorial on Getting Flat Square Metal Panels

I have this collision model which I converted over to trial (copied the vertices measurements). I'm planning on using this collision model and its model to help make a "log mod".

The only problem I have is that the collision model has small "cracks" in it (along the sides of the model, the collision model is too short: if you touch the edges of the log, you go through the object)

I know this isn't because it's a conversion problem, because I tried the model with the full version and it still has the same problems. If anyone can help make the log more "whole" I would really appreciate it.

P.S. if someone wants me to post the hex data for it, I can do that.