Im refering to static mainly here. Sure, in the air, from half throttle, it takes longer to get to top speed and rpm, but it now they occure at the same time. Before, with the 16x8, it would be at full rpm instantly, maybe 8800 ?, but the plane would need several seconds to catch up. Now, it happens almost instantly, and the rpms increase with the speed of the plane, together. It just sounds more real, has alot more zip or quickness, and jumps off the ground instead of slowly building up speed while the engine is already screaming it's guts out at 8200 to 9000 rpm. My engine simply wasn't pulling my plane around with any authority before, and now it drags it around like it's mad at it ! lol