Carrying kayaks on top of truck while towing 5er

We have been using the Goalpost since 2011 no problem. I had it modified two years ago to move the crossbar back, in order to have the saddles grab the kayaks in a better spot. So far so good. Here's a link to a hi res picture, hopefully you can see it ok.

https://picasaweb.google.com/106711389998236597454/20150517WestcottBeachStatePark#6151129804332657074