Gosh!! the tools & the knowledge you have at your disposal, I'm envious.
I see you traced some extra arms, were they meant for me too?!
![Big Grin](images/smilies/biggrin.gif)
The added 1/2" length will changed the geometry of the bucket rotation... you'll cross that bridge when you get to it?
I'm looking forward to seeing what you come up with for functional improvements.