Check that Go Outdoors stock your size before you head out. I checked the nearest store online and they only had size 4.5. Not much use for my size 9s.
Both these models are older ones so you may pick up a bargain online if you can find the right size.
The shoes with 'sticky' soles rather than the 'endurance' soles (their description) seem to be better on wet rocks and tree roots which is why I opted for the Roclite 295. The trade off is they wear down a bit quicker.
In my Mizuno trail shoes I almost ended up in the river when I went flying on a wet rock. Only worn the Roclites a couple of times so far but this included a steep rocky descent with tree roots (but it was dry) and they were excellent.
There are a number of comments on threads on this site saying how good the Mudclaws are, but I wanted a pair that I can also use for walks here in the Cairngorms.
Loads of info on the inov-8 website