Hmmm...
A Jett .46 likes to rev, big time! It will happily spin an APC 10x6 @ 16.5K...That translates to ~90mph...a bit fast for the S/E IMO. According to Dubb Jett it is NOT a good idea to over-prop this engine in order to slow down the revs either...it's simply not set-up to run that way.
My vote is to save the Jett .46 for a speed demon plane and get a decent sport .46 for the S/E.