They promised me that conversations with Piper concluded that the graph was not a limiting factor.
When there is an accident, as there surely will be, OAT will find that the insurance companies do not share the pragmatic view of the [unidentified] Piper source.
Keygrip - Not to put too fine a point on it, if you chose to accept the assurances of OAT over the Arrow POH, you deserve everything that you get (or lose)!!