ARCHER....I do not know if you have flown the .40 before with the O.S. 61FX before....but take my word for it...YOU WILL LOVE IT!!!..I went from the .46 FX to the .61 FX....the power is friggin' awesome.....who needs a landing strip..the T _ _ _ T takes off of a dime!!!...the power has saved my dutch hiny many times....so.....your patience for now will pay off big time..trust me!!Keep me posted please and when the maiden comes around..let me know if I was right!!!