GP Ultimate Bipe .40 + Saito .91?
BK:
Landing speed is more a function of wing loading than total power. With the Saito adding only a couple ounces the landing should be very close to the way it is with the 46 engine.
And personally, I like three bladed props. A 12x8 or 13x7 should fly nicely, and eliminate any clearance problems.
Bill.