Further update - I'm posting this in this thread and Herb's - hope it is useful.
I tried the boot shell sanding - using sandpaper of varying grits, and even some sanding stones on drill bits with my cordless drill. Had some success, but made absolutely no difference to the pain. Bugger!
Rang RB's UK distributor, TKC Sales, to speak to their RB specialist - Ian Hendry, apparently - to ask his advice and whether they could do anything for me. I'd rang them almost 2 weeks ago and been assured Ian would call me the next day - he didn't. Someone did ring last week to explain he was at a trade show and would contact me in the next couple of days, so I felt reassured.
A week later...still no phone call!So I rang them again on Tuesday. Was told Ian was 'in a meeting', so I compained and he was interrupted to speak to me. A very nice guy, very understanding etc., but ABSOLUTELY NO KNOWLEDGE OF THE SHELL ANKLE PAIN PROBLEM. Oh dear. He had no awareness of this site, of Herb's review, nor was he aware of the comments made on the RB site and replied to by 'Sami' (who apparently is a marketing guy at their head office in whatever country that's in). So I filled him in and he promised to email Sami that day and get back to me.
No reply as yet. Not what I'd call good service so far, but I await with bated breath...doesn't inspire confidence. No wonder RB availability in the UK is so poor.
Anyway, I decided to try Herb's insole suggestion and found some spare practice silencing pads for my drumkit - thick foam rubber, about 7mm, quite high-density. I cut two insole-shaped sections and put them under the liners. I then cut two triangular pieces and wedged them between the liner and the inner side of the boot shell, around the cuff rivet area, on each skate.
Took them for a blast tonight and...NO ANKLE PAIN! Ta-daa! A bit uncomfy as my foot's a bit squashed but that should ease as the foam compresses. A solution of sorts for now.
Cheers Herb and Alex - you guys should be seeking consultancy fees from RB
. I'll make sure I tell Mr Hendry - if he gets back to me...
Roll on amigos