There are a number of ways now to increase rear toe. The new FT toe plates are one way. Then you have the new FT Rear hubs in various increments of toe. Then the aftermarket parts from STRC, Racer's Edge and others.

I have 1.5* STRC hubs in my SC10 and love the traction they provide. I would like to get the new FT B44 hubs cause they have larger bearings and are FT Blue. On anything but sticky clay, carpet, or asphalt you will want more toe.

Just got to RC10.com and click on the parts/factory team/SC10 and you will see some of these AE parts.

Hope this helps.