No, and I didn't have diffusers on the strobe either. 
Seriously, I usually do use diffusers for wide-angle, but wasn't on these dives, and I may give them up altogether when using my "back-up" strobes - Sea & Sea YS-90DXs. My "main" strobes - Ikelite SS200s - and a pair of spare batteries are already on a boat that we will be joining in March in Sorong. The strobes and the batteries weigh a ton, and we will probably be flying to Sorong on a small plane, with a tight weight allowance, so it seemed to make sense to preplace the heavier strobes and my old film housing on the boat before it left Bali.
The YS90DXs are fine for macro, but don't have near as much "punch" as the SS200s for wide-angle, and adding the diffusers cuts the power even more. This shot, by the way, was shot with TTL. I think there might have been -0.5 stop flash exposure compensation, I bracked 0, -0.5 and -1.0 while trying to shoot the shrimpfish in close.
Menjangan is a pretty reef, and the shallow water corals have recovered nicely since we were last there about five years ago, when all the acropora above 10 m. had pretty much been wiped out by the 97/98 El Nino bleaching event. We'd done a couple of not very fruitful dives at Secret Bay - we were in the wrong place - the day before. Secret Bay is just around the corner from Menjangan, so the two areas make a nice combination for several days of diving. Pretty much pure muck at Secret Bay, and a very nice reef to dive at Menjangan when you get sick of the empty expanse of mud and algae. There are some nice places to stay in the area.
We only did two dives at Menjangan, the wall under the sandy point on the north of the island and the area near the Anker wreck. Based on that, I'd say the area probably doesn't have anything like the diversity of Tulamben, but as walls go, it's very pretty and surprisingly healthy. (The drop-off dive at Tulamben was badly damaged by a silt-out after heavy rains last January/February, but it is coming back nicely - good marine life the last time we were there in December.)
We'll be going back to Menjangan soon. There are Mandarinfish in the small mangrove bay next to the Mimpi resort, and I'd like to do as many dives as needed to finally get a decent shot of one of these wonderful creatures. The Mandarins come out in the afternoon, so it should be possible to do a combination of one or two dives on Menjangan in the morning, then come back to try the Mandarins later in the day. Followed by risking DSI in the hot sulfur baths at Mimpi.
Robert Delfs