I know with the Hemi's that is very true. Both of the guys I spoke with said that with modern day Hemi parts geometry issues are more less a thing of the past, unless you cheap out on the stands or use the wrong rockers. Unsure of which way I wil be going, and I have a long while to think about it. Funds permitting I would like to use Bartons setup...but I have read some not so favorable things about dealing with them so I do not know.....Stage V might get my money....