I've been fooling around with my new setup, 5050, PT-015, Ikelite DS-50. Now that I am using the strobe I think I should cover up the internal flash diffuser on the PT-015. Is this correct? I would like some ideas for non-permanent covering of the internal flash. What is everyone else doing? I would also like to take this time to thank everyone for their help in the recent past for their input. -Howard