Just for an update, I absolutely love the wicked 4800 with the Pentium 40. I did have to hog out a hole for my battery that put it all the way into the ducting. I do like the way it lands with the added weight of the larger battery as it doesnt float quite as far but still sets down nice and easy. This new motor sounds great in the air and very quiet too.

In short, if you are thinking of upgrading to this motor, it is well worth it.