I haven't really had the need to use one that much so I don't have one. I have used chain a few times to spread out the load. This was mainly as a training aid for when I used to teach winching. The chain wasn't really required.
Are you sure you need a bridle strap? i would have presumed your recovery points would be more than strong enough but i havnt had much to do with the DMAX before. if you think it would better suite your DMAX I can't see why a tree trunk protector would not be a great substitute unless you need the tree trunk protector for a tree trunk.

I have a TTP, snatch and winch extension. The snatch and winch ext get the most work.