Hi, Please, what should be a Take -Off Noise Level  for M20C with Lycoming O 360A1D  and new 3 Bladed Hartzell (HC-C3YR-1RF/F7282) Prop? I replaced the original, old 2 bladed Hartzell HC-C2YK-1BF/F7666A-2  with the new 3 blade Prop. Unpleasant surprise for me is a new Noise Certificate (Foto) with 85,5 dBA, while in the old one there was 75 dBA. According the Hartzell Page new prop.  should  dramatically decrease noise.  lg,m.