Warren Johnson ran a diagonal link in Pro Stock...I am good friends with Gary Hanson he loves telling that story about Warren getting cars and removing the wishbone. Gary owns his own chassis shop and ran Pro Stock for a long time. He will install wishbones but prefers a diagonal link. Thye both do the same job.

I have run high 7's with a Diagonal link with a 4 link and the Vette runs 7's with a diagonal link and ladder bars. Been 1.07 60' with one.