Hi. We just went live with our Echo on May 10, 2010. We use the Anti-D series 4 and 5. We use the same reagents on the Echo and on the bench. We do use both anti-D antisera on the bench as well as on the Echo for a couple of reasons. First, I wanted to keep everything consistent so the techs didn't have to think about which reagents to use. This is important for the generalists on the evening and night shifts. Also, when I built the tests into our LIS, I built the calculations to include both antisera. That way we only have one "type" calculation in our LIS. Lastly, for me it kept the ordering of reagents more consitent. For the validation, since we were using different typing sera prior to the Echo, I validated the Echo first against our current reagents and then validated the Echo to the new type reagents.