Cheers for the input peeps.
In order:
Lars1974: Good luck with the BT021's, beware the BIG drop off in grip after 2.5-3k miles. ps they are very noisy!
Ade B: Just might give them a try (tyres not FWR though, rip off merchants the last time I went there!!). Watch this space.........
timbox2 (and others): looks like I'm doing better than most as far as wear is concerned! How surprised am I

Gone are the days of the jolly old VT500 with 16k back and 22k front, thems were the days...
JoeC: Never tried Sidcup Tyres. If I do go to Watlings then it would only be Catford, been going there since they were in Lee High road. Tried the Dartford branch twice, both times I was greeted with "Oh a bike, well we can order some in for you but it will be a few days". As far as what they charge, they can only add on any extra cost to get the tyres to that branch the same or next day, if you point out that they are charging more they "in the past" have reduced the cost to the same as Catford.
Me, I now use Essential Rubber in N1, excellent service, nice people and up to the BT021's, a reasonable cost. PLUS they sell crafty plugger kits!
Again, cheers for the comments, I'll let you know how I get on.
To those of you going, I'll be the blue blur wizzing around the IoM in August with the Shark end can.
Isn't it fun pasting Jap plastic!