e put together eroded the preservation recur with one regulatory mirror this is inside bans the p.i. p cia is by customer and vantage so people that opt out have a difference by cia they have different vantage so each customer has a different p cia potentially any questions about the methodologies? >> do you understand that. >> kind of understand that i just you know the notion that the p cia is variable is harder get our heads around. >> it is an impact to margin historically not changed this much over time a penny and penny and penny. >> are there certain clarification like commercial for example, not this great of an impact. >> you can look at the exhibit to the item it has the p kay for every customer class and type i don't know the answer to that. >> i'm going to plan b i don't know the pause notion i like the plan b option in indeed an exit you know if this went through you can an variable a certain class it make sense because of the customer type of. >> i think; right? >> i don't have an answer to that maybe hale has that or certainly we can come back. >> if that's an option we need