Etymotic vs Proguard


I'm in the market for some fitted earplugs to replace my neverending stream of disposable yellow 3M earplugs. I go to gigs pretty regularly, and find that (as everyone knows) the foam earplugs make music a bit muddy. At the same time the non-fitted Etymotics (and similar) seem to either not be strong enough, or don't fit well enough to do the job.

As such I was looking at Etymotic, ProGuard, and Hearology. Does anyone know of any pros and cons to look out for with any of those brands for fitted eaplugs?