not all companies give you fuck all off for it mate, just way it is.
i found ringing round for best quote did a lot more than people who went for pass plus.
on the bright side, now im a "bit" older and have full no claims i have managed to insure my 2.6 twin turbo mega modded drift car with mods declared for under 500quid, 45quid more than the sierra GLX i had on the same policy beforehand!
TBH i just lived with high insurance for a few years, and now, fuck me, everythings cheap!