I towed for the first time with the new F150, and put the Harley in the VRV for the first time. I bought a Harbor Freight Chock. The chock is a T-shape with top of the T being 3' wide. I bought a rubber floor mat at Lowes and placed the chock on the mat. I tied the chock from each end of the top of the "T" back to the D-rings to keep the chock from sliding forward. I attached the 2 straps on the front and 2 straps to the rear of the Harley. Aside from some of the straps coming loose, the bike did not move at all. So, I've decided no need to attach the E-track to mount the chock to. I forgot to take pics of the inside, but here's a pic hooked up to the new F150.

Mod Edit: Adjusted photo to comply with the 640 pixel guidelines. When posting pictures in the future please use the Yellow Image icon in the tool bar, paste your photos URL link in the appropriate box and type in 640 in the width box (leave height blank). Thanks