Pik n mix what are those like in the corners? I regularly see one (could of been you if your round north Wales) when commuting the long way home. He keeps up on the straights but hangs back round bends. I'm either in my celica or mr2 and I don't think he's realised it's the same person diff car.
With aftermarket tyres it was great, death trap with cheapo boots though.
I'm going out on a limb to say that he's not very good in the bends as the compressor is faster than most celicas and Mr2's if they are stock. I'm a massive Toyota fan boi and the comp is special.
Which celica have you got as obviously if its the GT4 your going to be more planted round the bends
eta.. My next compressor will be bought with a GR4 wrc so I can send it to fensport for a 4wd conversion. Then I think it will be pretty much perfect.