My 75B with the Fastfire has to go back to the wizard. The Fastfire doesn't sit all the way down on the adaptor. llh exchanged emails with the company that produced them and they want him to send it back so it can be fixed. Not sure how long this will take. The happy news is that llh sent me a PM saying that he put the TFX sights on the Omega last night. So, once my company has departed I will be able to take that for testing.