I've found that the "platform" feels a lot more firm than with any of the tires (rubber) on the ground...ie; feels firmer and more solid when I'm digging or moving dirt.I have a question. Never used or owned a backhoe but why do you take all four wheel off the ground? Is there an advantage to it when using the backhoe?
I try to always have the front bucket fully rotated down to sort of lock in the front, not wanting the hydraulic pistons to have much stress(s) when things get "bumpy".
I keep an eye on the underframe bolts and substructure, and there's not been a single issue to date.
This is the first tractor I've ever owned, so I'm learning as I go.....which started in 2018.