Show some respect, GFs Repack downhill record still stands after 30 years, you can dream of ever being as good a rider. Fisher bikes make a very cool 6" trail/AM bike called the Roscoe, you should check it out.

This DVD rocks! If you ride 26" bikes off-road you need to see this to discover the roots of the sport you love.

Just what i was going to say, serious weld oxidisation evident on this frame - Titanium frames must be welded in an O2-free atmosphere to ensure maximum weld strength/durability, otherwise they absolutely will break (ask anyone who owned a Clark Kent frame back in the 1990s) The rainbow discoloration is a tell-tale sign. There is a reason good Ti frames cost so much - production is very time-consuming and expensive. I'll second what Vertigoat said - hope the first crack isn't your headtube snapping off. That aside, this is a very impressive homemade bike, hopefully you'll find a way to make Mk.2 a little more durable.