I have a client to whom I am prepared to pitch installing a combination of LCI-RTS105s as the LCR speakers plus four LCi-RTS100s for the side and rear surround sounds. The value prospect, in part, is the THX Ultra 2 certification of these speakers since this home is being built on spec. We have tentatively discussed dual CSW200s as in-ceiling subwoofers, but they are not currently THX certified. Does anyone know if Polk is planning on or in the process of having them certified? If not, what do I install in order to be able to rubber stamp the installation as THX Ultra 2 certified?