Need help with shooting style for the Delta Wolf / Impact

I just got my Delta Wolf and my bipod arrived today. Thanks Tomcat for the great review of bipods, helped a lot. My question is, how do you guys with Impacts and Delta wolfs support the butt of the gun. With the bipod legs set at 45 deg , butt of this style gun is still to high to rest it on one arm. All my guns are standard style rifles, Red Wolf, etc. I shoot with it resting on a bag in the front and on my arm/hand under the back of the gun. Standard shooter method. The back of the Delta is so high that I need to put my arm on a bag to get close. I have seen some people using something attached to the bottom of the butt for support. Any ideas would be helpful. Getting used to shooting this style gun will take some getting used too. 
Thanks Smitty
 
I use an odd set-up, but I do it mostly because of serious back surgery. I can no longer bend over completely, so this HI-rise approach allows me to comfortable shoot.

Probably not for you normal people. ;<) "No, it isn't in position
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yet. LOL

Knife 
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