i spke to eibach before adjusting mine and they said the opposite to you. anyone go the link to the whitleine pdf, i cant be arsed searching lol
Think about the length of lever needed to undo f-ing tight wheel bolts. With a short 12" bar, you probably won't be able to undo them - but with a 30" breaker bar, they will be easy.
that to me backs up what myself and everyone else have said by using the inner hole, you have less 'leverage' from the bolt to the centre line so it will roll less as its harder to bend.
If you use theouter hole the 'lever' is longer so it would 'bend so to speak' easier and thus roll more.
I stand to be corrected, no one is right all the time, but the above makes sense to me, eibach also confirmed it as have others. ill have a look through the PDF after i pick the wife up from work