I Too have always gone with foam ear plugs, usually cutting off a small section so they fit fully inside my ears, but they kept falling out, or after I take my helmet off.
Hence the reason I went and tried these newer style ones, they do need patience to allow for the different sizes that may be required, simply insert, twist backwards, once inserted they seem to me to be as comfortable as foam ones, and best of all they don't slip out until you take them out.
Choices are not everyone's cup of tea, same as helmet a choice, I chose G Mac Helmets, like the feel of them, they have everything I ask from a helmet, most of all good quality, safety stamped, and lower costs, Aria and Shoei's, where my preferred helmet choice, apart from their extortionate prices.