Oldpath, look at the new Deere 848L skidder. About $400,000. People around here use them to pull trees, as they were made for. Most of the pine stumps here are taken out with a large excavator and the stumps are from 1 to 2 foot at most.
I guess nowadays most woods crews can afford excavators if they'r paying half mil for one skidder, prices have gone up. But back 40 years ago around here that would be a added luxury. So back in the day when we get one woodlot done, we load one grapple skidder of two, go 50-100 miles, chipper right behind and two hours behind that a chip trailer is coming, now its 10am and we get the JD 540 off, send trailer back to get other JD540 then I spend the next two hours knocking over a few big trees and ripping out all the stumps with grapple, some over 2', just enough to get the 20" Morbark chipper in and the chip trailer is coming in a minute, so I smooth out the ground with skidder blade in fast motion.
Now its 2pm, the chip trailer just showed up and boss is in a hurry, so I back the chipper in which if in mud can be handful for the JD 540. The two Morbark shears was brought over the day before and they cleared the small trees off the landing and have been shearing all day. Now with chipper all set in the chip trailer is backing in, now it's 2:30-ish and I'm now latching on trees to bring to the chipper the other guy is throttling up the chipper, 20-30 minutes latter the chip trailer is full and away it goes, now the other JD540 is here, the next chip trailer is backing in and 20-ish minutes that one is full then the boss is calling it a day around 3:30-4pm.
The moral of this true story is that a grapple skidder dont know the difference between clamping on a 2" stump or 2 cord of wood. Here how it goes, back up to the stump clamp on the back roots, rip, clamp the other two sides and rip, then clamp on the front roots rip and lift then drag that stump out of the way... But yes excavator is the best for digging out stumps and rocks........... I also have a few, might say I'm ashamed of stories....................
CBI Stump Shear Hydraulic Stump Shear - YouTube