BK Wanderer question

[BrianG]

Oh boy, I got my 8xl today (thanks Mike)! Man it's heavy for such a small thing. Anyway, I read around the forums and covered the rear bearing with tape as instructed. However, I remember reading something else about dirt getting in from the wire exit hole but I can't seem to find it. Is it recommended to somehow cover the gaps in this opening? If so, with what? Hot glue would be easiest but will melt I'm sure (causing more problems than helping). Maybe shoe-goo? Will this void any warranty?