I've ridden my xtra 30 miles in a day, and it's a big ol' cruiser. It always felt to me that it was the donor bike's geometry that determined its handling. The Madsen, of course, is its own geometry. YMMV, past performance is no guarantee of future results.

Of course, that doesn't solve the train problem.

Any possibility Day Care would let you keep the folder indoors there? You could chain it to an exposed pipe or something.

Tricky, tricky.