Believe it or not: most of the innovations and modifications come from lower levels. If you give someone 5-8 ft. of space, you are guarding (as an individual) a ghost. Unfortunately (at the highest level), some players are paid millions to do so. And who said conventional? All things are not pure. There are modifications. Never get stuck at the purity level. You have to become aware of boundaries: you can push in or you can push out; but bird **** will drop where it drops. And you best be not the center of concentration of where the birds are nesting. Again, you can go in or out, but all nesting is a series of camouflage. If you are not aware of the heavens, then I would request the biggest hat you can get.