I know this is different for different people but I was wondering which skins give you the best aim/make you better at the game? I get really good aim on Sentinals of Light Sheriff and Reaver Operator

People might have had this question before and it might have been answered several times before. I was in gold 1 and almost about to go to gold 2. After 3 days I came back down to silver 2. Not to brag but I did my job well based on the age...