I would like to see a Pacenti tubular rim that would be similar to the SL23 in terms of general shape.
But I'm not really positive a wide tubular rim has the same purpose as a clincher rim. I would see the tubular version not as wide, to allow for road use mainly. Or the bead shape would have to be road oriented.
NOT like the Major Tom. If I compare with the Velocity shape, lots of people like the A23 clincher, but the same shape in tubular is not really mad efor 23 mm tire. You have to use 25-28 mm tires for a perfect bond and shape.
We saw bulky tubular rims appear on the market, mostly to win some wind tunnel side wind drag contests (IMHO).
The comfort issue is not relevant in regards to rim width with a tubular rim. Different story with clincher rims and tires...
The shape of the rims would act as a deflector, and at the same time, would mold perfectly with the shape of the tubular tire glued, and inserted in the bead.
With an alloy rim, I'd be curious to know what rim shape would be the optimum, for weight savings, strenght, some aero benefits, and best for road use, mainly with some 22-24mm tubulars.
The SL23 shure would be a nice template to start with. If we transfer te Kinlin comparable weights, maybe Pacenti can come close to 400-415 g per rim. Would be super. I'd certainly buy a pair.