orakei diver

Hi all
I have just got a canon G12 with ikelite DS 160 strobe and will be using it at 55 metres in a couple of days but am confused as to the best settings ( at that depth I don't want too many buttons to fiddle with). If i do auto on everything will the flash ( hence the strobe) go off every time( there is no setting under auto to force the flash, it's either off or auto)? Or should i use the programe mode in which case will the TTL metering work ok with the strobe going off, i don't want to have to fiddle with power settings on the strobe if i can (learning at sea level is a challange let alone way down there). I won't have a chance to do a trydive before and don't want to waste this dive by getting it wrong. Any help apperciated.

Hi all, my sea and sea camera just died so am looking at getting a G12 with Ikelite housing. Over the years I have found strobes a bit of a pain (cords only working with particular housings or strobes, changing cameras but strobe not working on new camera, strobes not firing all the time etc.) So i was thinking of getting a decent LED torch/light instead. I've seen people doing it but are they dreaming or is it a real option. I'm not a serious photographer and this camera system maybe the last i get (getting to long between dives to warrant any more expense). One other option is i have a sea and sea ys-27 DX strobe, is there any way to get this to work on a ikelite housing?Any help is appreciated