Here in Japan there's a top Yokomo Factory driver who runs an associated front end. Check out his setup.
http://www.teambomber.jp/waistmountain14.2.16.pdf
The above setup is for asphalt. Please note : The upper arm block (castor block) is not a standard associated block, it's one of his own designs, which you can buy. It has various offset positions that you can use. What it does in the above and below setup is it moves the upper arm pivot point +4 mm outward. This allows you to maintain the same camber gain you were previously running but also run wider front track which will offers more front stability.
The below setup is from the Japan Nationals stock class. This car was on rails, and posted the fastest lap and could of easily won the title if not for a few driver errors.
http://www.teambomber.jp/R12_Bomber_20140706_kuroda.pdf
I tried his castor block setup and used this setup. Stupid me, I placed the blocks in the wrong orientation (Japanese Kanji is difficult to read off of paper, where were you Google Translate!). I ended up moving the pivot point - 4 mm inwards. This basically eliminated any for of camber gain. The slow tight infield sections were fine, however, the high speed sweepers and infield sections it pushed hard like a dump truck. And I mean HARD.