ive made my own bipod and i use the harris bipod. both have their advantages and disadvantages. the one i made was really handy and pretty quick to set up but didnt give any adjustment, i had to do all the adjusting which isnt always easy depending on the shot.thebiggestproblem i hadwas i would carry it for most of the day and then gettired of carrying it or forget it in the truck and thats exactly when i woundup needing it of course.
thats what is nice about the harris bipod because it attaches to the gunso you dont have to worry about if you have it or not. i dont like that its not tall enough for me to shoot from a kneeling position unless im shooting uphill or downhill. and its heavier than the bipod i made which makes shooting off hand alot harder to be accurate at.