need a little info on the subject...

rear anti roll bars on the saff.... been told use stiffer springs and u can lose the arb??!!
and been told wrc cars still use them even if there using fully adjustable everything else..... but when converting mk3/4 escorts u don't have the weight as a saff so not a major necessity? anyone ever used a compression strut type of replacement?

just asking a question and stating some things I've heard, id like some info off the back of a good source not just people telling my their opinions and then starting arguments :0p

thanks