In reply to Reader_Rambles:
Outside of winter I only ever buy 50s, and I don't bother with dry treaded.
With that in mind I've just bought a pair of Fixe Fanatics, 8.4mm. Happy so far, though they've only done one route (Cream - a great christening!) so can't comment on their durability but they handle well.
My last pair of halves, Mammutt Phoenix 8.0mm were ace and wore pretty well considering their diameter, but maybe a bit thin for some people.
Both those pairs are an absolute bargain in my opinion.