I have lightweight backups I usually go-to about the third week..just lucked out early.
I still like the 10..and would carry it if I had to choose between a 20, 12 or 10...turkey guns are getting lighter. But with the monster shells available its nice to not get "beat down" from a shell.
Trick to make your bps 10 feel light is to buy an sp-10 and carry it the first couple days...there's a piece of iron. I grabbed a 12 one morning that I had no luck and thought it was going to float out if my hands. In short ...run what you brung..