So IPOR is the second one and the prototype Slee is the top photo?
What twist are you thinking about, Bill? The drive line twisting the cross member? Slee's looks like a Budbuilt on steroids and IPOR's looks like it's a 1/2" thick hunk of iron.
"Why does the U.S. care which flag will be hoisted on a small piece of land thousands of miles away?" -- Ron Paul