I did not consider a thumb, but it looks interesting. If I understand the thumb attachment, I would still need to plumb in additional hydraulics to run the thumb cylinder. Also, after I posted the grapple question I was looking around the internet for ideas where to buy a grapple and came across an attachment that is a grapple rock bucket made by Tomahawk. I have been thinking about getting a rock bucket but can't find an excuse to buy one. The grapple rock bucket looks like I can kill two birds with one stone(less money). I am guessing this attachment is not as strong and rugged as a commercial grade piece of equipment, and equipment built for a single purpose generally outperform those that are multifunction. Since I am just a homeowner with a couple of acres of woods, something like this looks like it might work for me. Any comments or suggestions are greatly appreciated. Maybe I'll end up getting both the grapple and a thumb. I'm always looking for a reason to buy more attachments. Thanks, Bill