In reply to Somerset swede basher:
> Do you recognise any grade I ridges as winter climbs?
No, as you say, they're really fine aesthetic ridge walks. I haven't been over Chrome Hill for about 10 years, so can't remember much about it, except a rocky pinnacly bit, that's probably exaggerated in my memory.
> Striding, Swirral and Sharp edges in the lakes can be done without using a tool (but obviously carried in case you need to arrest a fall). They are classed as 'classic' grade I's.
I'd describe Sharp Edge as grade I, and Striding as grade 'a half' and Swirral edge just a literal walk. In summer, to make Striding Edge a grade 1 scramble you have to keep very strictly to the crest. Ditto with the lovely Hall's Fell Ridge (on which there is some lovely scrambling that most people just walk past on a path on the right).