This tree split during some high winds we had a couple of weeks ago. I told them it should come out and they wouldn't hear of it. The owners are quite elderly but very spry. They weren't home when the tree split as they were golfing in Palm Springs. The husband is 92 and the wife is a little younger. The targets under the split portion of the tree are a dinky fence and some peach trees and the telephone wires for the house, so not much to be concerned with there. I told them I thought this was the beginning of the end for this tree. I ended up bracing the tree by putting in two bolts of 3/4" allthread which I lengthened to 4 1/2'. I drilled the holes using a 7/8" wood boring bit welded to a 7/16" rod that was 4' long. The homeowners weren't home when we got there and there was no electrical outlet on the outside of the residence so I had to go back to my house and get my generator. It wouldn't start, so I tipped it over get rid of the gas in it and put about a quart of saw gas in it and it started right up. Oh, it's a Modesto Ash, about 60 years old, and the split (if you can't see it) goes to within a foot of the ground.