Any suggestions? I have invested a ton of money into earplugs. I have some $150 custom molded ones with a 15dB filter, some Hearos and Etymotic ones, Earasers, and a few more. What I find is that they are all good for different things but at some gigs, they all attenuate too much and I'd like to have something with less attenuation, like 5dB or something like that. I know they make 9dB filters for my custom plugs but looking at the frequency spectrum on those, it looks like the high frequency attenuation is almost the same as the 15dB filters I have so it's not a flat spectrum and wouldn't be much different in the highs than the 15dB filters. Do they make any earplugs with say, 5dB of attenuation and a flat frequency curve?