jUST TRYING TO GET A FEEL FOR THIS. mY 3-ENGINE CLUSTER I DESIGNED 20+ YEARS AGO HAS A UNIQUE "OFFSET" FIN DESIGN. mR ROCKET, @ APOGEE COMPONENTS, VERY INTERESTED IN IT. bASICALLY, HE DOESN'T BY DESIGNS UNLESS PATENTED. JUST WONDERING, "DO i GIVE IT AWAY"? THOUGHT IF IT'S USED IN A "FACTORY DESIGN" REWARD ENOUGH. aNY THOUGHTS? WHAT I CAN TELL U IS WHEN THIS BIRD TAKES OFF VERY INPRESSIVE SLOW LIFT OFF & DOES A 180 DEGREE ROLL LIKE SPACE SHUTTLE.