You could phone them - there is a contact number on the website - or, if you like, I could have SWMBO try to light a fire under somebody's butt (she works there).
The experience that I have had is that trees in yards and along fence rows are the most suspect for metal objects. I use a metal detector to check for nails and such.
Steve
The Maple and Oak that I had sawed this weekend had nails (ruined 2 blades). My FIL has lived there for over 8 years (since shortly after the house was built), and never put any nails in the trees. We suspect that someone had built a deer stand on one, as the nail heads were 2" deep in the tree, and there were quite a few of them.
HomeOwnersHub website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.