In reply to UKC Gear:
Regarding the rubber, the good word from the folk at Five Ten UK is that:
"As long as you are not a toe dragger then they are comparable to other brands. The rubber feels soft, but its actually quite strong, having a very high tear strength. This means it is more predictable than other rubbers, and will creep, rather than skid off unexpectedly. Also it is a memory rubber, so it forms back into shape. Try sticking your fingernail
into it..."
I've since tried digging my nail in and it does seem to reform pretty well so we'll have to see how they go!
J