Longest run for a putter in your bag
My current gamer has been in my bag since September 2014 so it is going on 4 1/2 years. I had gamed a Scotty Cameron Inspired by Brad Faxon for a little over 4 years (call it 4 1/2 years as well). 4 1/2 years is the longest single stretch of time I have gamed any one putter. I had gamed a Ping Zing putter for about 4 years early in my playing days. I've gamed 8802 style blades (8813, Designed by Cleveland Classics, Cleveland Ben Crenshaw, Scotty Cameron American Classic VII) at various times amounting to about 10 years of time. I've gamed mallets, Ping Anser Dalehead, Anser styled, and TP Mills styled putters (Heritage, One, Cameron Circa 3) for some of that time. Like most of us, we're always on the hunt for a better arrow, the one that will bring the magic to our putting games.
At present I don't see any style of putter that will replace my Byron Morgan Epic Day custom putter. It has become very dependable and I trust it. It flows perfectly for my stroke. It looks perfect to me when I line up a putt, no distractions whatsoever.