I did'nt have that big of a problem, but the last time that I serviced the bearings I found one of the spacers split down 3/4ths its length. It would seperate an lock the bearing when you torqued the bolt.
That's worth bearing in mind! I'm trying to improve my technical skills and have bought a trials bike but as a beginner I find the bottom of my bike spends a lot of time scraping on rocks. I also find the concept of keeping my feet up very alien.