Ya tie down straps are a pain in that trailer. I put stryfoam type foam in front and behind…. My cart just fit with inches to spareOh bummer! Yeah, I've been using those trailers since '09 - they're definitely beasts. The only issue I've had though is the cart can bounce around in them and scuff against the sides. I bet they'd ride better with less tire pressure?
I used to fight cinch straps to secure the front while reaching down over those high rails, until I found self-winding versions at Walmart. This fall they started to fail and Walmart no longer carries them.