In reply to NorthernRock:
> I always understood that technically, drop 2 or 3 grades of the sport grade to get UK tech.
This sort of works in the lower end of the scale but it completely breaks down past about brit tech 6a equivalent.
> E1 5c "should be" well protected, but 5c could also be E2 to E4.
> E4 5c is probably in your terms "death on a stick"
This isn't really what I am getting at though, I am looking for a french equivalent. Also, it isn't correct because E4 5c is often well protected, just very, very sustained 5c, e.g. Electric Blue at Rhoscolyn, No Cruise at Glen Lednock and Spaced Out Rockers On The Road to Oblivion at Reiff. So really you need to both look at the climb and read the guide desc before you can get an idea of what makes it E4.
In reply to a lakeland climber:
> Safe E1 is F6a, scary E1 is F5c, Very scary E1 is F5b
>
> Just keep adding a grade to each scale so safe E5 is F7b, etc. So Right wall is V scary and is probably F6c/+, Doubting Thomas at Malham is safe E5 and is as hard as any F7b I've been on.
Hmm, this seems in the right ballpark but F7b for E5 seems pretty hard. A friend I talked to who had done various E6s said that fairly well protected E6 was about F7b, also, the few E5s I have been on have been pretty safe and felt about F7a.