Hi, I have a Daystate Redwolf but have neglected in using a decent bipod on it for a while and have been feeling the effects in having a cheap one. I'm seeing Caldwell, Accu Tac and Spartan bipods on the market and don't know which is best for bench rest work. I'm torn between the Accu Tac WB-4 gen 2 and the Spartan Valhalla V2....... Can you let me know your opinions as to which is best and why you think so?