Hi
Just got a brand new 610-3 and while I can shoot the original grips, I could use slightly smaller/thinner grips.
Lots of choices online, but near impossible to tell sizes!
Looking for hints/tips/advice
Thanks,

If I recall correctly the Pachmayr Professionals leave the back strap uncovered, which makes a significantly smaller grip diameter. Not much thinner though.

News I can use, as we used to say. Thanks,

I like the VZ grips on my 4".

Found some hogue grips at the lgs. I'm not convinced they're really round butt grips owing to the strange gap and the labeling, but they work and do the trick. But they don't look like the website pics.