Hoping one of you could help me in deciding which bipod to get. Looking to get one of the longer harris bipod swivel series for sitting shots. There is one that is 11-25" and another that is 13.5- 27". Does that extra 2" come in handy? They are on sale for around the same price and want to get the right one. I am 6' 240ish lbs. They are around 115$ on sale. Is that a good sale price that only comes around so often or is that a pretty normal price. I ask because I dont really need it anytime soon just figured I'd pick it up if it's a good deal. Thanks