This tool is indispensable if you plan on doing detailed assessments on tree condition and stability. Some may disagree but they suck.
I seldom use mine either, but when a client has a tree that is in quite poor shape or questionable safe condition, it's often answered many questions that would otherwise be invisible. This device has saved many trees from being cut down. Sadly it has proven that many were far too dangerous to remain standing.Haglof is a good brand; I've got 2--but rarely use them! JD's got the right idea.
I'll be up there in September. I did some work for the Great Falls folks a while ago; remember?
It sounds like both trees can be pruned and kept low risk indefinitely. Focus on the load, not the "defects". http://www.historictreecare.com/wp-content/uploads/2016/11/Detective-Dendro-The-Case-of-the-Deathly-Hollows.pdf
And Guy that was trolling! @guymayorI seldom use mine either, but when a client has a tree that is in quite poor shape or questionable safe condition, it's often answered many questions that would otherwise be invisible. This device has saved many trees from being cut down. Sadly it has proven that many were far too dangerous to remain standing.
Well ... I already had 2 certified arborists come out and look at the big oaks last fall. I was clear with each that I wanted a risk assessment done and why. Both came from reputable companies that do a lot of business in the area. One is from a large business that probably claims most of the work around here; the other is well known and highly respected in these parts and was recommended to me by our city. Verdict? One said take both oaks down - cavities, defects, hypoxylon canker. The other said prune/balance both and just keep an eye on the vertical lesion of the southern red. The second guy never mentioned the bulge on the cherrybark, but I really don't recall if the first guy did.Have somebody with experience in tree risk assessment look at it with you. Sounds like you have an offer from Guy. A few hundred so you can feel confident in purchasing .35 acres or a few hundred to save several thousand if they do need to come down. Sounds like a good investment either way.