I've used blocks most of my career. They're more expensive. Although I'll never have to buy another one. They're heavier than rings. I like to add friction at the tip as much as possible. They add a little. They're easier to remotely set and retrieve than a block.
I started thinking about using a winch on a truck. Single line you have 8,000 lbs. Add a block and you have 16,000 lbs for the same job. A block obviously doubles your power. I've been getting a lot of dead and very rotten trees lately that folks have let go way too long. Some evening hanging a hank
of rope in them would cause failure much less rigging. Just looking for options to not deliberately double the force at the tip for the compromised trees.
I took down a big Gum a few weeks ago. On a very steep hill behind and above a shop. Was hanging right over the top of the shop. No drop zone. About 30 ft behind the Gum was a nice oak even higher. I should have climbed it and set a block. We were pushed for time. I backed the bucket to the shop. Could reach the entire tree. Was 25 ft from the rigging tree. I threw a throwbag into the second tree and pulled up the rigging line and natural crotched it. We was rigging some pieces that was pushing 1,000 lbs. Plenty of room to drop them. Ruined a nice 5/8 stable braid. There's a 50 ft section that can almost stand up on its own. I really didn't think it would be that bad. That got me to thinking about remotely setting a ring to ring. So I spliced one up. I had considered remotely setting a block in the rigging tree but the forces could have easily been 4 times the weight of our pieces. I have since learned how to remotely set a cinching block and be able to retrieve it. I would have done that If I had known how. But even that takes 4 times the rope to set remotely. And I was needing the block about 75 ft up.
I'm looking for a virtually indestructible remotely set and retrievable rigging point. I was thinking maybe a Fiori ring and a Beast ring on a sling. The bend radius should be good enough. And pretty quick and easy to set.