I shoot best with more drop than is popular these days. Three inches at heel is fine as long as the comb is about 1 5/8" to 1 3/4". My shooting style is a bit different since I only lightly make cheek contact with the comb. Anchor point seems to be about even with my teeth. Head up and both eyes wide open. It's a very relaxed mount. My two hunting buds who I often join in pursuit of wild bobwhite quail also have independently evolved a similar mount. It makes for a very fast mount and shot, especially when terrain or brush demand a quick shot or none at all. And a heads up position allows us to maintain awareness of surroundings better than the modern style. The old time American gun makers produced what the public wanted for our walked up game shooting and that was more drop.
Heads up or down is not something to be argued about. Neither style fits everyone, nor should it. It just works for us and our hunting conditions. And in the evening when the guns are cased and the dogs fed I've always got more birds to clean than I want. Life is good.
PS: for those of you who have never had the joy of meeting a truly wild bobwhite on his home turf the only way I can describe their explosive flush is to suggest you imagine a bottle rocket unexpectantly firing nearby in heavy grass and brush and you have no idea where it's gonna go. And those little stubby wings have him at what appears to be warp speed in about three feet. If that doesn't rattle you then imagine a covey flush of about 15 of the rascals noisily exploding right under your feet and heading towards every compass point. Oh, they're good at what they do!