I have a query for you guys who use flashguns a lot in low light situations. I consider myself a total newb when it comes to using my flashgun as I don't really use too often, however when I do use it (low light situations) I'm finding it not fast enough between shots. Would it be advisable to upgrade to a 800 or 900?
) ISO speedwise, I've tried bumping it up with varying results but might be due to aperture not being big enough.