Strafer,
You may well be right HWD, which is why you should put your trust in the actual meteorological conditions rather than anything I say!
I guess I'm asking too. My understanding is that for clear ice to form, a portion of the supercooled droplet melts as a result of the release of latent heat and runs back then refreezes. I'm just concluding that on narrow edges, this won't be particuarly noticable compared to the amount hitting, melting, running back and freezing on the wing. Whereas rime would just freeze instantly and collect more readily on such edges.