You say that, but after my last set of tuning my E3 Pro is a real workhorse! Give it another 4 years like I did. May also help to threaten it with replacement if it fs up ONE MORE TIME…
When I was fixing up a CR10s to give away (it was a rescue from another friend that fucked it up and then gave up.)… I would show it the old Univac manuals with instructions on where to hit the chasis, and tell it I was in conversation with Creality about the proper usage of hammers.
Seemed to work…