Many thanks for all the suggestions folks – plenty to start looking at.
I’ve had a few issues with Mavic and Castelli jersey sizing as I’ve found them a bit long in the arms / body and too tight over the (ahem!) chest. Will try again, but any indications as to fit?
I think you’ll have to try them on, especially if you’ve got big …er… sizing issues. The whole idea of the Gabba jackets is that they fit closely and don’t flap about. When I was racing, I used an Assos waterproof with the sleeves cut down to just above the elbow as my last resort; the Gabba replaces that.
I think the search for the perfect waterproof is still in progress; I’ve used just about everything from pertex through boil-in-the-bag as well as Pac-lite and the lighter Castelli Helium things. The Gabba is the best so far, but still doesn’t deliver the perfect dry inside wet outside when you’re at full speed.