Ive never really heard of that brand....are they quality products?
http://www.google.com/search?hs=fNb&hl=en&lr=&c2coff=1&client=firefox-a&rls=org.mozilla%3Aen-US%3Aofficial&as_qdr=all&q=BBCS+site%3Ahttp%3A%2F%2Fwww.pirate4x4.com%2Fforum%2F&btnG=SearchIf the above link doesn't work go to google and type this in the search box:
BBCS site:http://www.pirate4x4.com/forum/
PBB has been down for the last day or two so search results may not be accessable if you click on them, should be up soon I would think.
A lot of guys are switching from ranchos and bils and running these. They are specifically valved for crawling and come in either leaf or coil valved depending on your application. I am not trying to convince you, just trying to save you some $$ as I think the BBCS's will perform just as good if not better than bils' 7100's since they are valved specifically for your application. I have never run 7100's, so I can't say from personal experience, but the info is out there, they are damn good shocks for the $$. I run 15" BBCS's in the rear, will be adding 13" in front this weekend.