hey guys right heres an update, be very careful using this stuff because i have noticed some cracking around the sids of the shell little bits have cracked and become a bit weak!! so only do this if you really really wanna change your shell colour!
I only did it because the paint job was rubbish never liked it and i won the shell for a fiver on ebay year or so ago. the shell is now 100% clear totally totally clear of paint, the sun has an amazing amazing affect on this, if you apply the brake fluid and leave it in the sun it litrally just rubs off with no hazzle at all!!
so biggest tip i can offer is do it while its still warm this weekend is perfect! some elbow grease is needed though, i think you must have been lucky with your batch that came off with paper towel! oh and right all this stuff about misting and stuff what i noticed. When the brake fluid is allowed to dry with the residue of the paint it then turns misty! so what i did was got a flat screwdriver gently scratched that off, doesn't matter because shells have scratches on the roof anyway from where they have rolled!!
as for the residue and misting over the rest of the shell i just got another brillow pad and applied more brake fluid but this time wiped it off straight away with an old t shirt and BANG clear like glass. so for what under £20 i've effectivly got a brand new alfa romeo shell.