I'll wait for a report on your 16"s then, to compare them. I read somewhere else on here that 17"s were a pain in the ass, but above is the first positive comment for them. How much it cost you to roll the arches? Although i don't really want to go that route.
ECP quoted about £45 for lowering springs of 40mm, sounds good. I've recently noticed that the rear tyres have scuffs on, which i got on my Integrale from the arches. The last thing i want is it to be like that again, 5 door car but can only have 2 in the front!!

Could it be the shocks are soft/gone? They're 195/50/15.