Following a recommendation from Brucey, I've been pretty "blown away" by how good Swissstop Flash Pro BXP pads blocks are (they look expensive, but are sold in packs of 4, not 2), now have these on my Hewitt Cheviot tourer, my Brompton, and now the Campagnolo-friendly Race Pro BXP version on my new Mercian. They're very good in both wet and dry and run quite clean. Are are these not the right size/shape for your needs?