Bigngreen has had the same experiences I have. The better I get at long range shots the more picky I become in the game I will shoot.
Some people take the shot just because it's 500 or 800 or whatever your magic number of yards is. I personally will only shoot if the animal is of the quality I am after and the shot is good.
I sat and watched a really nice Blacktail that was a real good 3x3 for almost an hour bedded under a manzanita bush. He was pretty incredible to watch but I was after a 4x4.
will definitely improve once you can shoot over 400 yards. They can spot you really easy.
When you see that buck or whatever of a lifetime it won't matter how far away he is, you will be able to calculate everything you need to make the shot. The confidence to make the shot will help you out a lot.