Just wondering if I could get an opinion on Peltor electronic ear defenders. I'll be spending a fair amount of time on the ranges for the next couple of months so I'm thinking about investing in a pair. As you all know, it is a right pain trying to remove the ear cover nearest the RCO to listen to the instruction and then having to replace and do up chinstrap before next instruction arrives....repeat ad nauseum. Do the electronic ones help or are they a waste of time and hard earned? Also, the things vary wildly in price on the web so any ideas where to purchase cheaply would be welcomed. Thanking you ta.