Just put my 912uls gearbox back on after a professional overhaul with a new gear set.
I’ve got a 3 blade Warp Drive taper tip prop and I think my spinner was Warp Drive made (front plate).
Zero damage to prop or spinner.
Blade pitch is within .1 degree of one another.

I’d been noticing a worsening vibration and decided to get my gearbox overhauled.

Using rented dynavibe I started testing today.

With spinner on…..get ready for it:
1.7 ips !!

Removed spinner….…
.4 ips

Removed and rotated prop 180 degrees and still .4 ips

Prop balanced statically using Buzz Master and it balanced nice and level.

Checked blade tracking and have found 1 of 3 blades is about 3/16” off.
I saw on another forum that Warp Drive says 1/2” is max!!!

I’m stumped. To boot, carb sync shows it’s perfectly synced.

Will be checking prop flange tonight.
Obviously the spinner has issues so we’ll table that for now.

Any thoughts?
First flight after gearbox overhaul was not enjoyable. No flying until this is diagnosed.