Tips on getting large stumps out of the ground?

[thankyouTBN]

I have a few stumps this size and a bit bigger. I've done completely around them but they do not budge. Any tips how I might be able to get them out? I'm running a CAT 306 which I believe is around 15,000 lb. I want to say that I pulled a stump out bigger than this with roughly the same size excavator before, but I don't remember exactly what I did.

I just finished tonight, pulling out two, what turned out to be MUCH bigger trees than I thought they were. It takes a lot of time and it is extremely scary and dangerous. I absolutely do not want to rent a stump grinder. I bought all other stuff years ago and I want to use it.
It’s kind of challenging and kind of fun. I got a 200 foot long 15,000 pound rope and 180 some odd foot-long half inch cable four snatch blocks. The first tree I pulled without using the pressure washer. The second one wouldn’t come at all so I need to pressure wash clean the roots so I can cut them with a chainsaw. It’s a lot of time, but it’s not as bad as what I used to do is to dig down and then pressure wash and then cut the stump off below ground level then bury it. THAT is a lot of physical labor. I really am getting too old to do that kind of work. Oh, I forgot to mention I COMPLETELY (hundreds and hundreds of gallons) saturate the ground with water. I think it does help. I feel like I’m making do with what I have. I don’t wanna ask my brother-in-law to bring his backhoe over. I don’t want to rent a backhoe. I don’t want to rent a stump grinder. I also don’t want a chainsaw the stump off below ground like I always do.