DON'T Be afraid of buying that Root-Grapple ! ….. I wouldn't of believed it if I didn't see it, But my buddy bought that same grapple direct from them 5yrs ago and it is one well made TOUGH attachment …..
I tried it out on my A-300 and it withstood anything I threw at it, and i've been known to pick-up in excess of 5,000 lbs (I have alot of counterweight added) ….we used it when we did a huge ROW clearing project at an Air-port, back in '09, I was handling green D.Fir Logs 28" at the butt, and bucked lengths up to 25 meters in length … it withstood all the twisting when we were pushing up the log decks …. for 2 months straight everyday, we were pushing up and handling Aspen/willow/pine mixed crap piles …. to this day I know of no structural failures
For the Money it's worth it ! …. even though we know of the saying "You Get What You Pay For" …. in this case i'd say you get More !
Hope this helps you out …..cheers !!!