My tendency is to refill my guns after I shoot them down to the “need to refill“ level. I have an electric pump and wondering if this is a good idea or irrelevant as I can fill them fairly quickly. I suppose I could put a little back in it just for emergency shots at a starling or crow. Of course the real answer is to get a larger air tank to fill it quickly when needed but I don’t have one of those “yet” . So, is it harder on the gun to keep it filled with air or am I worrying about nothing? I have an FX Impact and Benjamin Marauder.