We are all different my friend. I have never felt guilt but I constantly think about my actions and make sure that I haven't changed my mind. Many shooters give up the sport in old age. Not just because of health but because they change their mind about things that they have always believed in. Aging affects your brain and your body. I question my motives regularly but so far I have always come to the same conclusion. Hunting unendangered species is morally justifiable.