RE: Dazzler with .70 4 Stroke!
I think you would like the APC 13x6. That's what some owners of this engine recommend (me included). It will pull like a tractor, and should give you pretty good top end too. Try it and see. I bet that Dazzler will jump right off the ground with that combo. Vertical should be near if not unlimited. GREAT FUN!
Let us know what you find.
Jim C