I've got a stereo pair of JrF hydrophones which I've not used very much, other than just testing them out around the house. I'm planning a trip to the coast in a week or so and want to give them a further test by recording some sounds of the sea. The geography of the area is quite rocky, so there are lots of interesting rock pools etc which I anticipate may be good to record in. Pembrokeshire, to be precise.
Now the thing I'm trying to suss out is how best to do this. The water is of course tidal, and although I'm obviously not going to go near any spots with very powerful movements, there will still be some movement of the hydrophones in the water. To record in tight areas (where they may collide with the bank or bottom) and to get the most water movement over the hydrophones, should I anchor them in some way? I'm imagining something like a pole with two clamps on, holding them in a spaced omni type configuration. Does anybody do this? If it's a good idea, can I do it safely without damaging the JrF phones? I'm conscious of not wanting to damage the rubber sealant.
I understand that this will create a different type of recording to if they are free floating and that there is potential in that technique too. I've just not found much info on stereo techniques, but watching the video about the amazing ambient surround rig got me thinking about this.