A few days ago I took the Milan for a longer ride on Vancouver Island from Campbell river to Comox. When I left the house, I had the hood on but ended up removing it on the ferry and putting it in Jan's car. The reason for taking it off were twofold: first, it was annoying me having it on and it wasn't raining much nor was it supposed to (forecast said only a couple of hours for less than a mm). I figured this should be OK as it was warm enough and all that could happen was my getting wet. The second reason was I was riding with a friend to whom I had lent my Borealis. He didn't have a roof so why should I!! I met him along the road and off we went. Well it went from just a few sprinkles to a downpour an hour later. Just as we got rolling along a slightly downhill section, that goes on for about 15 km, I got a flat. Changed out the tube and on we went. I did get a bit chilly doing this but warmed up once we had to climb some hills heading to lunch at a pub.
Before the flat I had given up leaving my glasses on as it was just raining too much. The rain also slowed progress quite a bit. I am sure on a sunny day I would have ridden this section at 40+ kph just dancing lightly on the pedals--just a perfect section for a velo. Will need to ride here again.
The conclusion drawn from this ride was that there is a need for a easily deployable roof that stores inside the velo. What I am thinking of is a tensioned fabric structure with some batons in it that can be put on in a minute or less without getting out of the velo. If it works out it would also work nicely as a sunshade. The Flevobike roof would do this but I would prefer the roof to be wider and to pack smaller.