For such purposes, it is better to use an excavator. And if so, then it was necessary to leave the stump as high as possible, they would have pulled it out the first time, without mocking the tractor.

From all the stump pulls I've learned that you need that dynamic part of building up speed and momentum and just repeat that, its always more effective than static pull force.

You can see that the boys do not know the job, such a tree is cut 2 m from the soil and then fastened at the very top and then it pulls out with its roots

I would have had the stump out of the ground on the 1st or second pull. Hook the stump to the lifting arms using a thick piece of steel (like a drawbar) and gradually lift the stump THEN start pulling. Been doing this for 50 years!!

in a neighboring village on a collective farm, for this there was a special uprooter, in the spring they put a young trainee on K701 and let's uproot! in general, he already broke a half-frame on one tractor at lunchtime, they gave him another one, on it in the evening ...
in the morning, the chairman ordered to hand over the rooter in metal and hire an excavator

I'm always happy to hear the sound because I grew up with it. T150 k and then came the k700. If he plowed somewhere or was on the silo. If I'm right there, you could hear it from afar. No luxury, just pure power. Only after the fall of the Berlin Wall did Fend and others try to get there. Not everyone can drive such a device in the ass. Is like kamas kras and interconnected peterbillt you must not. I drive a Belarus mts 52 is very stiff but a really good tractor. I love the sound of the k700
And also from Belarus. But shifting is an art, but if it fits, it makes everyone wet