I have been using the Freedom 7 and Surf 7 and Surf+ , all for surfing.
I find the Surf 7 much more acceptable regarding shock discomfort than the Surf +.
I mostly surf 8ft McCoy Nuggets and the front electrode is lifted out of the water during most turns, resulting in very noticeable shocks through my front leg. The other big issue is during eskimo rolls: If the shock occurs just before the upside-down board is covered by the breaking wave, then both hands receive a strong shock.
In each scenario when one or both electrodes are out of the water, the shark deterrent action is greatly reduced or absent, and the shocking of the human user is all you achieve if the device discharges at that time. So you might as well prevent discharge.
I suggest you measure electrical resistance between the electrodes in-between the discharges and stop the next discharge if the result shows that the electrodes are not submerged.
Ive duck taped over 80% of the front electrode and Im still getting shocks when jumping to my feet through my arms and then again when I do my first bottom turn, go's into my foot and up my leg. Also when just paddling in board shorts only I get little shocks which contract my leg muscles and lifts my feet 50mm. I know that when the front electrode comes out of the water on take of or bottom turn it arks across to the nearest object being my hands or front foot. Am I a freak or is this normal? Im guessing everyone on short boards is having this happen. I have one on a mal and I only get shocks when I'm climbing onto it and the nose comes out of the water. I don't wont to duck tape over any more of the electrodes as the protective field will be so small and defeat the purpose. This is driving me nuts as it screws up my take off and first bottom turn. I feel this is ruining my surfing experience. What I'm doing now is turning it off as a wave approaches, however I've got to be really quick as if I mess it up I miss the wave. I'm thinking of trying to learn how to turn it off with my foot. Be great if there were a switch on the nose.
Sorry to read that you have all experiencing frequent shocks. If you head over to our FAQs section, there is some great advise on how to prevent yourself from experiencing these shocks.
Please have a look at the following: