I've been considering filing my ATF paperwork for a SBS, and SBSing my 870P. I use the gun for HD, and for fun shooting. In case of a SHTF situation, it would also be my main means of protection. My question is, for indoor use (HD), is loosing 4" in barrel and over all length much of an advantage? How much accuracy do you loose with slugs and buck? How much of an advantage do you have when clearing your home? I see lots of "entry" shotguns with 14" barrels. Another consern is, I'd loose 2 shells. Thanks.