All good points. I may put off a new splitter until the budget allows for a better machine.
I do know my 22 ton can't split live oak. Could be the pump is getting weak after 15 years and several thousand cords of wood.
My tree digger gets weak over time and it's always the pump.
I may try a new pump if there cheap enough and see if I see any improvement in the old splitter. I'm gonna need a new machine soon though.
Could you split the live oak in the past? If so likely cylinder or pump......if not, why would it change?