Well my BIL has a 4th issue now. Coolant leak, should only be 1-2 weeks at the dealer. He thinks it stems from the last trip to the dealer where the hydro was getting into the coolant.
I could honestly have purchased a Kubota with the cash he has LOST with the Kioti sitting at the dealer. I tried to get him to come in here and "share" his experience, honestly I think he is just embarrassed at this point.
And he hasn't even tried to sell it yet. Good luck to him on the resale. Kiotis are cheap before AND after the sale - lol.
You seem to know a little about this stuff but not willing to learn the rest.
Hydraulic flow (gpm) has to do with how fast the cylinder goes in and out. Pressure is what determines the force. A 2in cylinder with 2000psi at 1gpm will lift a lot more than a 2in cylinder with 100psi at 10gpm, it will just be slower. GPM for speed, pressure for force. Kubota has the balance of those two really dialed in.
Another point. Weight and weight distribution on the tractor has a LOT to do with the design of the hydraulics system (you seem to think it plays no role). Kubota builds to international standards ISO and believe it or not, tractor/loader/excavator etc. lifting capacities are well defined and all revolve around a fraction of the gross weight to the lifting capacity. Kubota could easily double the lifting capacity on machines, but not without effecting the balance of that ratio. I couldn't see/find where Kioti built to any standards, but loader capacity isn't some magic "they can lift more because they are better". If they follow the standard they will be very similar to any of the other brands that build to the standard. The weight of the machine is always the limiting factor determining loader lift capacity on CUTs.
I am not sure how you "see" quality in a tractor by looking at the paint. A perfect paint job on a motor that was built with a bunch of parts that were not heat treated would be hard to see but complete crap just the same. The rockwell hardness of any of the metals involved are hard to "see" but really easy to "see" the results of force put on the lesser quality metal.
Sometimes things cost MORE simply because they are BETTER. Better materials, better build, better overall cost of ownership. And I will never forget my grandmother saying "the best isn't for everyone".
I am sure I am biased due to all the crap my BIL is going through with his.