I bought a set of bolt on bucket teeth and find they just get plugged up quickly with small brush and weeds. I found that I ended up with large piles of intertwined crud that was difficult to load and remove because it tends to keep rolling forward when trying to load the bucket. I could never get a full bucket unless I got off the tractor and loaded it by hand.
The bucket tooth rack is now sitting in my barn and I use a root rake grapple for cleanup. My advice would be to save money on the tooth bar and buy a grapple. Cleanup will be way faster and you wont need to leave your seat. I get less twitch grass clumps and weeds and more brush in every bite.
No matter which way you go make or buy a grill guard for your tractor. You may need a belly pan to protect low dangling items as well.
I haven't heard of a "root rake grapple" I only saw them pick up limbs and logs and such. Not crappy little vegetation. I need to search that. thanks!