Howdy
I don't have anything helpful to add (and I never let that stop me), but related to this subject, I just (nearly) finished putting together this Franken-single speed.
The frame is an old Raleigh from I don't know when, the fork is off a Cherry custom frame that I had to retire due to corrosion.
I was concerned about what the steering dynamics might be like when I started cobbling everything together. It steers a bit different than any other bike I've ridden. From reading the previous posts, I'm thinking the straight fork is giving a short trail dimension. The bike seems to "want" to stay centered, but once I steer off center, it feels like it wants to "dive" into a turn. I'm running the fattest tires the fork will accept (700c X 28).

Does that make sense? Is that what I'm experiencing on the bike? A short trail?
Any comments, criticisms, or ridiculing is appreciated.

[MENTION=23361]FarHorizon[/MENTION]: As far as riding no hands all the time - are you thinking of doing something like this: https://www.youtube.com/watch?v=0Rw3q32oPCk