Where is your location? I will be riding around Cambridge tomorrow and would like
to take a look.

I think another criteria is low thief potential. I may be wrong about this, but I think
a step through frame Mixte or otherwise is not as much a target. I also wonder about
the potential for spare wheels. I have put my business card on bikes that have had
the front or rear wheel run over. No one has ever called, although I got a frame that
way once. Lack of proper bike racks in both Somerville and
Boston make it happen more often then it should. I don't know how easy it to find
27" rims in the downtown shops. (Harris obviously has them, but it is a hike for
someone without a car or a bike to get there. Haven't ever asked at Broadway Bicycle
School.)

I am a competitor although right now I have trouble getting time to do 6 a year.