When do you guys feel its time to buy a new release? I was shooting yesterday and got to thinking...I've had this same release for going on 7 years now. Thankfully I've never had it let go on me but shooting in my basement all winter long kinda gets you thinking. Especially since the only place I can get a 20yard shot is with the hot water tank right next to the target. So how often do you guys change your release?