I practice with my pistol once every 3 months and practice with my carbine once every 6 months. I dont know about the rest but I do not become a goofball in between range sessions. I gained my primary skills back in the 1980's and all the rest is just maintenance. I do not shoot IDPA and do not believe IDPA is combat training. I would only train more than I do if I were going to shoot competitive.
Life is a web woven by necessity and chance...