John and Lou:

Nice discussion here! Thanks, Lou, for the clear explanation of the trig involved. I barely passed my upper level math classes; but the beauty of a well-described application is undeniable! Very good of you, John, to look into the specs on 1/2A setups.

Now before I give you the stats on my setup, I've got one question concerning line space on the control handle. All other things being equal, does a very small spacing (e.g., John's 3/4" Goldberg) still allow for a full elevator range of motion, or does it cut it short in any way?

Here's what I now have:
- Line length 42'
- Handle spacing 2-1/4 inches (can go down to 1 inch)
- Bellcrank 2-1/8 inches (hole to hole)
- Connecting rod at control horn in the hole farthest from the elevator.

Davey Mo....