I phoned APS Support UK today for some info and found the person I spoke to very helpful. So, thanks for that. Also have been watching patient's day videos on the site which were useful.
Finally, I think my legs look much like the ones shown in the recent post here. Well, in terms of the livido reticularis. Mine of course (unlike those in the pic) are not at all shapely. I guess Ive got levido reticularis knobbliest.