Ed,
After being taken out by you you've re-enforced my thoughts that the N16 is a more neutral handling car than the N15. I thought it before, but wasn't sure if the characteristics of the N15 was down to the extra power the GTi has. Your YD22 has similar power to a standard GTi and loads more torques so was a good comparison. The rear is so much more planted.
It made me want an N16 again :'(
I think I'll be giving those tyres of yours a bash next time round as well as the performance in the wet was immense!