so update from my side... tried the mouldable ones ... bit of a faff to get in and out , but worked well enough once in ... no good for the coached sessions though i think as needed to take them out to hear instruction , and a real fiddle to get to re-seal .
Got some of the macks aquablock ones , trying those this eve ... although the trial run in the bath last night was very succesful
The only thing about the cheap earplugs is that they have a habit of falling out, nothing worse than finding someones yellow ear plug floating around the swimming pool, its like a twisted kiss chase
If I had to choose then it would have to be a high quality, purely to save the embarrassment of loosing one, plus they get rid of ear infections a but quicker