The biggest disadvantage to the 686P(for a traditionalist) is the seven shot cylinder; takes some getting used to. I don't think you'll ever see a strength difference and for me the speed reload is slightly different but I now own two of the sevens and like them just fine after 40 years of nothing but six shooters(ok...I once said the 686 would have been better left as a six shooter....I changed my mind!). Don't give up your six but I think you'll really bgegin to like the seven once you've used it awhile. Have fun!