I used that process to put two pockets on. I got a can of the McNetts, and would have liked a bit more, so get two, as you will need to touch up the edges from time to time. Doing it again I would probably use some type of process to not get the cement outside of the boundaries or ooze out when pushing down on the pocket. I got a little bit on the edges so they do not look the best, but they work.
I was a bit skeptical at having pockets on the legs there, but decided to go for it. I could not be happier with the result. I was using pockets that go on the web belt or regular bc pockets that were a pain to get to, or use. These pockets are very easy to use, see, and best of all, I cannot even tell there is anything there when finning along. Very surprised. I would not get another wetsuit without figuring adding pockets into the cost.
I looked into sewing them on, EE recommended a shoe shop as they have the right machine, but I decided to just use the glue.
Tommy