I did Pete's style,and IMO,they look the toughest,I fabbed my rollcage main bar pads to them(rigid),you can use them to mount new fuel/brake lines to the sides of them(underside,which I'm planning to do),just an all around strong,thought out way to add strength and to tie the front and the rear together.A little added weight,yes.But added safety,yes.Thoughts on torque frame twist,gone.It's a big project,but in the long run,I'm certain you'll be glad you made this part of the Z as strong as possible.IMO,of course.I'd like to see some more posts on this topic,esp.from people who came up with their own ideas,and/or added or deviated from this premise.