Homelessjoe,
I'm of camp of moderation on the LOP issue. I neither subscribe to the "long as possible" camp nor the "short as possible" camp.
I don't like "as long as possible" because it is slow to mount, it promotes bad form by tending to rotate the shooter to a more sideways stance, and it increases the 'swing inertia' making the gun act more muzzle heavy (sometimes good, sometimes not so good).
I don't like "short as possible" because it can lead to the gun coming off the shoulder during doubles (but then, if it comes off the shoulder it's shorter than possible...right?)
But overall, I want to be able to face the target and mount the gun naturally without undue manueavering.