much appreciated Chris, thanks for that
You are welcome!
You may try various fins to find the perfect one for your kick style. I never used the Bio-fin Steve mentioned but you may find them "stiff" enough for manouvering and hovering around your target.
I love to dive with long freediving fins but the are nothing for photographing as the are simply too long and bang everywhere. They are very cool and energy saving for cruising around or chasing swimming animals like dolphins, whales or turtles, but have their limitations in narrow spaces.
I find jet fins for my kick style being perfect but the must be worn with booties. and are very heavy.
As you would like to switch to jet fins you might take a course and/or training in diving using Frog Kick,
as this kick style enable you to manoever in the most wicked spaces and - used the right way- don't stirr up the sediment.
Frog Kick: http://www.thescubasite.com/Scuba-Diving-T...lsion-technique
Back Kick: http://www.dirdiver.co.uk/index.php?option...2&Itemid=40
Trim position: http://www.dirdiver.co.uk/index.php?option...7&Itemid=40
Please note that both divers wearing jet fins with sping straps and especially their trim position, what is the perfect one for taking pictures as it keeps you and the fins away from the botttom and his fragile environment.
Chris