While you are here Andy, whats the idea behind the fork design?
We wanted a very light fork that wouldn't fall apart. We experimented with several designs, but back then component manufacturers were still over-engineering things and there wasn't a crown to take the road blades that was wide enough and didn't weigh a ton. They were a pain to build until we sorted out a decent jig.
My background was road racing (1st cat) but I was also an avid rough stuff fellowship rider, doing the most ridiculous routes on standard fixed wheel road bikes. I think all this is probably reflected in the overall design of the Zinn bikes.