Originally Posted by
Water pilot
Pickle Fork LEAN manufacturing changes
So there has been a manufacturing change, but I don't know from the document when that happened to understand if it has anything to do with this issue.
That seems a reasonable possibility, which no doubt will be being looked into. Changing to a forged from a machined part will certainly change stresses within the material and is likely to affect crystal structure. The comment that post manufacture stress relief is no longer required may be relevant too !
'Big Pistons' is right - you can have fast, cheap or good. Hard to get all three.