Anyone up on the history of the Model 66, when it was first launched, any design changes etc. A buddy of mine put a video of the Taurus 66 up on YouTube and compared it's overall look to the S&W 686. I mentioned to him that Smith often copied Taurus, rather than the other way around - an example being the Taurus Judge. So now it has me curious. I had always assumed the 66 was a copy of the S&W Model 66. Did Taurus make a design change that Smith later incorporated into the 686 or was it visa versa?