[Footmobile]

Better to have than to not, I say.

I agree that buttpacks shift at the most in opportune time. Also one doesn't and shouldn't take off your 2nd line kit for a rifle support everytime you want to take a shot in the prone.

We have existed in the USMC for so long without Bipods (until the A3) that we alway just made due. Sometimes to the detriment to good consistent accuracy.

After coming back from Iraq, and moving from rural to urban settings on a daily basis, I would always want the option.

Edit to add:

Relying on a buttpack for a shooting support defeats the purpose of having a buttpack for odds and ends, it's just not a stable platform when you use it as intended. What happens when you pull out your poncho, gortex or an MRE from your buttpack? Your shooting support has gone to shit that's what...