Picked up a bottle of the BIB and gave it a couple of tries. It has a LOT of that old bourbon, spiced rum flavor. Normally I like that, but it's completely overpowering in this bottle. It's not bad, but about half way through a pour I find myself saying, "Enough." I think I'll try vatting this with some other things to see what I can come up with. It has potential.
So is your BIB distilled at DSP-414 or DSP-354? Some of us here think that makes a differerence. My taste experience is that the DSP-414's are some of the rummiest of the dusty rum tasting bourbons. I also regard Signature as a very good bourbon and its difference from the DSP-414 dusties highlight what is different about the older versus modern bourbon profile.