I have a couple rifles with the Harris Bipod 6-9" on them, but I only have used them off the bench and haven't found a need to extend them at all off the 6" height.
For prone shooting I don't use the Bipod. Truth be known, for me it was just a waste of money as I can use sand bags or a back pack to get the same results. I'm not even using the Bipod off the bench these days either. The parka is a good idea.
I'm sure different shooting techniques will find a useful application for them however.
Last edited by JoeM57; 12/19/09.
