Sleds only work in the goose fields for me. Most of the terrain is too rocky for a plastic sled. I have improvised one out of corrugated tin roofing and it helped. On the roll up type I would be temped to get some MDP and mount the front grommets in that, I would reinforce the side ones with 30 mil PVC pond liner. If the grommets start to rip out the sled would be worse than useless.
But I would be more likely to use a frame pack and make two trips.
The trick is to drag a deer by the head or antlers, not by the sled, so the pressure isn't on the grommets. Tie the sled securely to the deer so it's being towed by the deer.
