You know, Steve, it's a really good question, and it’s a multi-layered equation behind gross margin. Of course, in the early part of the year, the products’ business kept taking up cost quite a bit, and we gained a lot of traction on cost takeout. But throughout the year, we also captured a lot of value in our offerings with our customers, meaning in some cases on products we stopped discounting some and held our price and value, but in other cases we provided more sophisticated higher value offerings in total. So, we've described the hub strategies, we've described the special care in the custom offerings, Sample Management, and of course in the GENEWIZ space, we described to you the proprietary capabilities that we developed in the ITR space. So, all of these do translate not just to higher demand, but also higher value margins. So, when we see these things happen, it's energizing to us and yes, it does keep our team thinking and developing new ideas, new innovations. We have maintained our operating expense investments behind our R&D line in the – particularly in GENEWIZ and in our services based around the integration and the value that we can provide as a total offering there. And I think most notably, I think we’ve captured the attention of the spaces around cell and gene therapy and that's got value wrapped around it. So, I think all of these contribute. I think when you say is there more wood to chop, I just want to make sure it's not misconstrued. I think we'll continue to always as a company have the inherent habits of taking out cost, but at this point it's more about the growth of the value offerings, more about developing those proprietary edges, and demonstrating the value in the marketplace.