.Map :: MoHAA Mapping

can anybody tell me how to get rid or that nasty line on top of the brush
mainly on trees i have tried using the patch inspector pressing ctrl+f but when i run the map the line is still....... There and another little brush problem is mainly on metal railings is however small i make the brush in width even 1 there still seems to be 2 brushes if you get what i mean......
any help would be gratefull .. LONGSHANKS...................

Trees: Make the brush a few points lower to get rid of the lines...
Fences: Give only one face the "Fence" texture, all other surfaces should be "common/nodraw".