[Ricky Bobby]

I'm going to tag onto this with a different angle. What is the better rear end for street driving JAG IRS or Ford IRS, this would take into consideration the ride comfort?

What would be the better rear end for track JAG IRS or FORD IRS?

The reason I ask is because a couple of the build kit companies only offer JAG IRS and some other companies only offer ford IRS. So the rear ends could potentially be a deciding factor when choosing a kit company.