From what i can tell mis-adjusted shoes, compounded by a few 4wd trips with some water holes.
ive only had the car for 6 months, and wasnt really aware of the EPB mishaps until the module jammed.
I suppose what im trying to say is if you keep your brake shoes adjusted you should be fine to use it whenever you like. The extra 30mins to adjust during a service seems like a good idea to me.
Cheers
Dan

