One more item to pick up and/or add to your TRE order before it ships is a "Tree Saver Soft Shackle". They are 8ft. long, 7/8" dia. and will allow a thimble or snatch block to tree saver connection. The less connections the better.
https://www.tacticalrecoveryequipment.com/product/tree-soft-shackle/
mrblaine is spot on with backing off the shackle pin.
You're still going to want to carry a hard shackle with you for those times when a soft shackle could be cut by a sharp edge. I carry my soft shackles, snatch blocks & hard shackle in a TRE canvas bag so they stay clean and out of the elements when not in use. I wouldn't leave anything on the front or rear bumper full time.