 Well, we've been a part of the PMMI share groups for many years and it's really wonderful to see these groups evolve into the new OPEX leadership group. We've focused a lot on operational efficiency kind of as a way to develop competitive advantage and so having access to all of those wonderful professionals to bounce things off of is really wonderful and we don't have to reinvent the wheel that way. Probably at one time or another we've had every operational challenge there is. You know, operational reliability, skills gaps in our workforce and then being from California, environmental regulation, environmental pressure, so just about all of them. And having access to professionals in our industry to kind of give us ideas on how to do this and how to do that, you know, somebody somewhere has had your problem and it's just great to have that resource available. Yeah, I would say probably our participation in the Sustainability Solutions Group was a big benefit to our company. It took us basically from an environmental compliance program, leveraged it to more of a comprehensive sustainability program to the extent that we have award-winning programs now, so I think it's been a great benefit.