Hello all. New to the forums. I recently just picked up 6 Electolux's. Pictures will follow when all cleaned up. Which has the best motors and strongest suction. I have (1)Super J, (1)Golden J, (2)Silverado Deluxes, (1)Painted 1401 and a Model L. Also i have PN2, PN4, PN4A, and a PN6. Any help...