Awesome thread. I just picked up a trailer a couple weeks ago and this is what I've been installing in my trailer floor...expensive. I went with it for 1 real reason: stud fittings give you a lot of possibilities. I modified a couple aluminum Condor chocks to work w/ the L-track. Its pretty slick to be able to change bike position for tongue weight or different bike styles. Once I wrap up my trailer I'll post pics. Most spray foam insulation expands significantly will buckle the walls. I'd stay away. Condor makes a couple e-track adapters: One, Two There is also a chock which plugs right into L-Track (this is what i used for my idea to modify my Condor chocks): Link Agreed. I was thinking of using riv-nuts on my aluminum framing (wall studs) for track and such. PO put a few e-Track bolts right into framing...didn't seem good w/ just a single thread or so of contact.