IATRKYHNTR: I hunt with S&Ws but have never used a double action shot on game. I prefer the S&W single action pull, I feel it is lighter and the hammer fall is not as heavy as with the Ruger single actions I have shot.
Your experience with the 686 is different than your experiences will be with the Ruger, or just about any other single action. The S&Ws recoil straight back into your hand, the single actions have a tendency to 'roll' back and up. Even though the grip may feel good to you, the difference in felt recoil (just the way it recoils, not the severity of it) may not be to your liking. I would ask if you could find someone at your range or in your club with a revolver like the one you were looking at and see if you can shoot it to get a feel for it. If it works out to your liking then I would say to go for it.
I had a similar experience with a Single Action Army reproduction - I thought that revolver was just about the neatest lookin' thing I had ever held, but it wouldn't grip right for me. The dealer even gave me half a dozen empties so I could realistically try the action and although the trigger was nice and smooth, the hammer fall left a bunch to be desired and it was tough to keep the front sight on target when the hammer dropped. So, I left that one there but fell more in love with a 4 and 5/8 inch job that felt much better and was more controllable. Unfortunately, my checkbook needed more control than that so I left that one there too (sniffle). But, HTH and good luck. Mikey.