Posted for "George Braly" <gwbraly@gami.com>:

 Allan,
 
 We have a pretty extensive data base of  L IV-P engine download files.
 
 Would you email me a couple of  typical flights.  Preferably a flight
 from the first 10 to 20 hours  and then one of the most recent flights.
 Some time in cruise at comparable altitudes would be appropriate.
 
 The 28 degree timing could be a significant issue,  but I can probably
 tell from the data downloads.
 
 Regards,  George