Thanks for all the replies guys, they've been very interesting reading and really helpful. If my tyres were at the end of their life it would be a no-brainer for me to go with the F1s or the PS2s, the decision is hard because there's so much tread left on them, and it seems such a waste to bin tyres with so many miles left in them. Although I do note how poor some of you with direct experience think they are. I know its been suggested I could keep them in the garage as a spare set but, in all honesty, they'll just clog up the garage with all the other stuff I leave in there, "just in case I need it". Despite feeling they lack a bit of grip, and are perhaps a bit noisy, I havn't found them dangerous in any way, I just don't drive quick enough on public roads for that - you can be the best driver in the world on the best rubber in the best car, but they're still public roads with cyclists, pedestrians etc. and I save that kind of stuff for the racetrack (although not in the GTI). I'm still undecided, if I find myself flush with cash (I wish!!!) I'll get them changed, otherwise I'll hang on to them for a bit longer, and look forward to seeing for myself how much better the F1s and PS2s are when it gets time to change.
ATB and ta for all the info