Ive had -1 and -3 versions.
One 4" two 6" and one 8 3/8".
If not shooting heavier than 240's id stay w a reg 6" -3.
That my preferred hunting and range toy.
If backpacking or similar......4". Im limited to 50 yards w a 4". Can shoot the 6" ok out to 100.

Agree on the Classic,.........5" the way to go.

Do not care for the looks of the new N frames. They might be stronger. I dont care.
Looks are important.
I just shoot deer......so dont need the endurance package.
Tried some 300s way back in my -1 4" and yup.....trigger pivot broke. Smith fixed it pretty fast