I used similar inserts as gmc6000 did for my chocks in my TH, that way I can easily pull them out. Didn't use etrack in my TH, but did in my car hauler. I mixed up lag bolts with 1/4 inch washers/bolt/nyloc nuts where-ever I could gain access to them from underneath. And for the lags also added gorilla glue to the pre-drilled holes.
In my TH, I replaced the factory supplied lags with washers/bolt/nyloc nuts for all my tie-downs. A 1000 lb bike is a lot of stress on little lag bolts. And yeah, I'm probably guilty of over-engineering the solutions but nothing ever moves....