I prefer shooting sticks to a stock mounted bipod. Have used both over the years... have also used my pack a time or two... and trecking poles slung together. Of the two options mentioned by the OP, IMHO, shooting sticks just seem more versatile to how high off the ground you need to be based on shot angle, obstructions on the ground, etc. It really comes down to which system a person has the most confidence in. To the OP, try both and see which one YOU like the most. I will say that getting prone and shooting off my pack is pretty darned stable, but you can't always do that. Good luck!
