I ran with an alternitave energy group a few years ago, in the "Tour de soul" i was in an electric car club from NHTI, (New Hampshire Technical Institute) but Vermont tech ran there stuff on it, they actually made it and used it, from what i remember the stuff is pretty cool, the only downfall i saw was it smelt like a deep fryer going down the road, But what do you mean by b-20 and b-100? is that a grade?