So Im wanting to get a bipod for my new rifle but not sure what height to get. Ive always used bags for a front and rear rest but want to try a using a bipod this coming year. I looked at midway and have made up my mind on a harris swivel, but will I need a 6-9" or 9-13". I do most of my shooing from a table but do a little prone shooting as well. Midway says the 6-9 is best for table and 9-13 for prone just wondering if anybody else had any opinions before I drop $100 on the wrong thing.