Yeah, it's a good question. David, I'll share a few thoughts then Bryan, please also share, I think there's a -- there are components of the variability of our services business that have been consistent for many years now and we've spoken many times about them. For example, the mix of services that is demanded is something that we allow to shift over time based on a primary focus of ours being what does a client need to be successful and realize measurable improvements as Bryan mentioned a few minutes ago. And, and so if that mix shifts more towards lower margin, or if that mix shifts from recurring revenue services to project based non-recurring revenue services, we're very comfortable with that. And we operate as a business with the primary focus on client success from a professional services perspective. And so, as we've seen over the last 11 quarters of, as a Public Company, the gross margin in the pro services space is as low as 20% and as high as high thirties. And, we're comfortable with that. And we've tried to be transparent about that as a long-term component of our business, that we will continue to, to optimize first for client success, so that's something that hasn't changed and that we believe will continue to factor into our services overall performance. Now, there's some specific elements in the near term that we're watching. One of which iis thing we talked about earlier that the tight labor market, the impact of inflation, the impact of needing to increase wages for our services based team members and understanding which components of inflation pressure are long lived and which are more transitory, is something that we're watching over time. And, and to your point, also, David there, there may be some components of the mix of services that are being offered that could be related to the pandemic. And so another component for us before we would make any pronouncements about updates to our long-term guidance, for example, would be allowing ourselves time to observe as the nation and the world hopefully gets through the pandemic. And we move into more of an endemic state to really observe, were there some structural elements that were just specific to the pandemic that, that now come back to a, a different state or were these a more permanent, long standing shift. And we want the benefit of, of observing that for a period of time before making any long-term updates.