I understand that a few days before HAI, Bell finished performance charts that will give increased numbers for greater than a min spec engine.
This is described in some detail in the latest Bell Rotor Breeze publication. The STC will be available to 407 owners at no charge.
Also, in a recent (Rev 9) update to the 407 RFM Normal Procedures section, the FADEC manual mode throttle check has been deleted (Section 2-6-B). At BTA last week the instructor stated that pilots were causing too much engine damage performing this check incorrectly, and that advancing the throttle to FLY sufficiently checks throttle control.