I see these questions pop up regularly so thought I'd start this thread for those in need with a simple and good training method.
The Shooterready CD should pretty well answer most questions, and the Mildot master is an on the field aid.
Oh and Karin at Shooterready is working on an advanced version for next year.
Hopefully anybody doing a search with any of the words in the title should find this thread.
If anybody else has any input please go ahead and share.