UPDATE:-
Plugs needed adjusting after an 1 hour of riding to get the "sweet" spot in the ear canal (only minor discomfort) this will come with time.
Removed plugs completely as I found I was over revving the engine on take offand changing gear as I could not hear the engine rev's.
Also, I do like to hear the sound of the 1100 through the Staintunes, however I still listen to music/phone through the Bikecomm system already fitted into the helmet.
Having said that I have used the earmoulds whilst grinding metal/mowing lawns/drilling concrete and are more then impressed.
Earmoulds for "me" are more suited to Freeway riding, not local riding.