I'm 62....and don't want to be having to lie on my belly quite as much as before. Especially in 1-2 ft. Of snow. It's getting harder and harder to get up ( to many sports injuries, and double rotator cuff surgeries more recently). So for me it's either long bipod ...shot from sitting or kneeling position or the new BOG POD I just bought..I've been hunting and shooting for probably 60 of my 75 years. I read all I can to improve my skills. And now I am trying to decide on the purchase of either a bi pod or shooting sticks. In the past I have relied on using the best available rests: trees, fence posts, cushioned rocks, and the list goes on. Which rest do you use - bi pod or shooting sticks - and why?