Hey, sorry for the slow response. 20% BB is a VERY high concentration. You can get that to hold guaranteed at 5%, like I said in my post I just brewed a 100 grmas a few weeks ago, it held perfect. I would bump the BA to 3%, just personal preference.
I am a kind of less is better guy when breweing. I just always figure the less solvent or chemicl you are pinning the better. I am surprised that some of these guys didnt suggest a lower ratio. Another Bro on here who really knows his stuff goingon4t, you can trust his opinions.
It was awesome to Bass chime in, I pretty much learned everything from his site and information.
Let me know if there is anything else.
Mike.