Thanks for the tip about the shadow. My point about the near edge of the deck came is a modification of the AMCs in JAR OPS 3, which is reputed to be distilled from the experiemnces of many operators, but they say aim for the space in front of the near edge - not sure I'm comfortable with that. I can't help thinking you're boxing yourself in if you go for the far edge. You're leaving yourself less room to plonk it down if something else happens.
Phil