I wasn’t able to get the link you posted to open so I don’t know if this is directly relevant or not. I got the 72” Tar River grapple in the below pic when I bought my tractor. Have used it for moving brush, logs, rocks. Have used the bottom as a wedge to rip apart a railroad tie retaining wall to the point some observers (had there been any) might have considered it abuse. Have also used it for light root rake type work clearing trails. The bottom appears to be essentially indestructible. Overall, I have been quite pleased with it.
One thing that may be a negative or may be operator error (I now avoid it). If you look closely it the inside of the lid tines (may have to zoom in) you can see the gusset for the lid tines ends well short of the point. If you put lateral force on the lid tines, they will bend right below the gusset. For example, you grab the end of a log/tree to skid it backward out of a bunch of scrub so you can work it up; catching the end of the log by digging one or more tines works well, UNLESS you turn as your backing up. If you turn, that puts lateral force on the unsupported tooth and will bend the tine every time.
I haven’t had a problem with bending the lid tines since figuring that out. I have considered welding on extensions to the gussets, but just haven’t had the problem continue since I know a bit better how to operate it.
Other than that one thing, nothing but praise for it. It’s been a wonderful tool for me. Just a couple days ago we had two dead trees fall across trails that would have taken half a day to clean up with just a chainsaw and muscle. Minimal chainsaw work and 45 minutes with the grapple had the trails cleared.
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