Hi all. Shooting a bat mitzvah party tomorrow night. I'm going with my D70, 18-70 and 70-200 VR (just in case and really more to show off my new toy to my friends), and a borrowed 50 1.8 and SB800. I've been playing around with the SB800 tonight. I'm getting a feel for the whole thing, but I do have a few questions on how to use it. Should I: Use the flip down wide angle diffuser? Use the attachable diffuser? Angle the flash head? I use the auto zoom, but it goes to manual with the diffusers. Do I really need them? Finally, should I use TTL or TTL BL (I'm mainly looking for advice, and i'll do a bit of trial and error there and of course adapt), and is FV lock a good idea to use with an external strobe, since it worked so well on the onboard? Thanks in advance. Your sage advice is going to help me greatly. I don't have more than an hour using external speedlights before.