Decided to bin the Sealskinz as not worth the bother. Found an old pair of thinsulated leather gloves that had found their way to the bottom of the dressing-up box because the dog had chewed a hole in the thumb. which means I can answer my iPhone if it rings without taking them off.
Much better. Warmer, more supple, less stiff, so less of a tendency to sore hands. And linings are properly stitched in, so no struggles taking them off.
Dunno how waterproof they are but, for the cold, dry weather that I mostly go cycling in, it only matters that they’re warm, not waterproof.