Negative Camber

I am using an offset trunion bushing kit from Rivergate.  This has
resulted in about 1/2 degree of negative camber.  According to the tire
temps taken at the autox, the car needs more negative camber.

I am curious to know:  Has anyone tried other methods to increase
negative camber and how successful the was the method?

Thanks,
Matt
http://dl.www.juno.com/get/tagj.