RE: Welcome to Club SAITO !
you're not going to get a "massive" increase in power going from a ys 63 to saito .82. i contacted ys for the recommended prop; MA 13x5 @ 11,500 rpm (that's what they recommend for 3D). it spools up fast. i'm not going to start a "ys vs. saito debate", they are both fairly comparable. IMO, i think that the saito .82 is just simpler.
jon