A few months back I built a set of wheels with the same rims. They are hard-anodised rims of 1990s design so don't have machined brake tracks. Although I'd done a couple of hundred miles on them before I got caught in a heavy rain shower I'd not used the brakes much so the surfaces were pretty much pristine. It was 40 years since I'd ridden new anodised rims in the rain and it was something of a shock to rediscover exactly how little brake effect they have when wet compared to dry. Luckily, due to traffic conditions I had started to slow some 20 or so yards earlier than I would do normally and was able to make it look like I'd intended to take to a cycle path rather than pile into a car which was waiting at a junction.