Bought a MTL Attachments stump bucket to help me clear some land. The 3015 did really well with it. We were able to clear about 20 3-6" trash trees in about 1.5 hours. Now I need to get my diverter kit hooked up so I can use my new root grapple to clean up my mess. Here is my mean machine.
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I was perusing the "net" the other day for attachments and saw a unit like your stump removal "bucket" except this one also had a grapple attached. Very cool looking. Haven't been able to find it anywhere since. I just installed a 3rd function "kit" on my 4020 and reported a bit about it here, so when you get ready to do one come on back, there are a couple little idiosyncrasies to address. But it's really pretty easy.