I've read a couple of threads on this already, but would like recent input.

I would be purchasing the helical head for my DeWalt D733 (compatible with the 734) planer, mostly for sound reduction (read: very cranky neighbor). If previous threads are to be believed, noise reduction levels are on the order of 10 decibels. Has this been your experience?

Clearly, the other benefits will be nice as well, but they aren't as much of a deciding factor. I just want to keep working wood without the town inspectors showing up every time.

Any and all input appreciated.