Making the arms shorter gives you negative camber so you loosen the lock nuts and push the top of the tire in essentially. I adjusted all the way negative and got -1.5 degrees of camber. Handles great but now the inner tread is wearing faster. Might adjust towards the middle of adjustment for about 1*. I’m on eibach sport lowering springs by the way. Lowering also gives it a bit of negative camber also.

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e70 - purchased 6/2018
e36 - wouldn't pass smog at 190k 2016
e53 - transmission blew at 225k 2012
e30 - sold as it was a little slow for a DD and burning oil at 220k 2011