Correct, there are only bottom side connection brackets on the outer locations.
I experimented with moving the top side strap over to the next inside location, but I didn't really like the severe diagonal angle that left the one strap with. And it greatly obscures the buckets usefulness, though obviously that is inherently compromised just by having any straps present in the first place. Ultimately it might be nice to use chains and chain binders (like the ebay pallet forks) vs. the ratchet straps, for a little more durability.
J_J, obviously it would be nice to simply cut off the bracket and re-weld it on the next tooth over.... I don't have a plasma cutter, welder, grinder, or skills. Nor do I have friends with such (though admittedly I may have to start reaching out a bit further and begging a bit).
I just looked at the other side's strap, that is mounted cleanly within the bucket edge (as intended by RR). It also is suffering some noticeable abrasion. I suppose I should stop trying to dig and move stumps around with the RR installed. On the other hand, it would be worth it to have to buy a new set of ratchet straps every now and then, for the peace of mind of not worrying about babying anything and just tearing into the bush without restraint.