I know he is running their rear suspension and what he has posted in his post may be the reason. Not to sure if it will apply to all the different types of rear suspension. Don't think if you can adjust your rear instance center (as in a drag 4 link) that this will be a big problem, but it might be, your just going to have to experiment. It all depends on your set up, and how your car hooks. Some cars will need a lot of front suspension rise and some may need to have it restricted. That's just the way it is.
