I currently have a bushmaster and love it. Just shot a doe out of it saturday. But it's not great for long sits. I'm thinking of getting a python top assembly to use for those all day sits during rifle season. Could anyone give me some input on the Python? How does that adjustable rifle rest/foot rest work? What keeps it up in position? Is it noisy? Is it easy to pack? I know it has to be 10 times more comfortable than my bushmaster.