I thought the UK legal ones (slipits IIRC) have the two finger cut outs the last one nearest the blade takes the index finger in to the best position to use it and also acts as a kind of locking effect during use. The tip has a pronounced is it choil (??) for to aid cutting and prevent slippage too. Or at least that is kinda what I once read about them. They look good IMHO. I actually think they look better than the clumsy opinel knives (locking I know) IMHO.
After all those comments I guess I really should buy one. Not got one but have drooled over the laptop whilst looking at them on Heinnie's and some other sites. This leads me to the question if you were to buy only one as a UK legal EDC which one? I reckon I'll get the question about what I intend to use it for. At which point I'll save you asking the question and day I don't know, what do you use yours for? Seriously, what do you use your syderco knives for? Sorry for the slight hijack but perhaps for us spyderco wannabe owners (without a clue as to why we NEED one) would find it interesting as well as showing and telling us which versions you own what you use them for or what are they best at?
As far as I go I like them from the littlest bug to the largest syderco. I am not a big knife owner (two SAKs, one clipper, one cheapo oddities keyring locker (sits in the car to cut the cable ties on my hub caps when I need to change a tyre), one opinel (7 I think), one cheapo two blade english pocket knife (my first ever knife when I was bout 6years) and a whitby locker that is about 1.5" long blade (nice dark, gunmetal colour with clip and a skeleton style, very nice and when clipped into my outdoors trousers they completely match the colour so it can't be seen - hence the numerous trips round the washing machine it's had). Anyway I think with that probably pathetic knife count I could do with a Spyderco but which one??