Oh geez. This is news to me! Thank you EJ, Axe.
.... I am leaning towards Rruuff's solution....
Tip if you do Dik. Nice slow taper for the entry ramp and glue or staple that non-slip liner material to the bottom to keep them from sliding forward as you drive up to them. First time is tricky to get them in the right spots and aligned square. I drew guidelines for positioning after I got them right the first time. Easy breezy now.