I just got a new choke tube (Rhino .680) - exactly what I wanted!!!) Hubby surprised me yesterday - - - Yay!!!

In doing some reading on their website - they talk about "polishing the forcing cone". They say this reduces your shot deformation.

Anyone here know anything about this? I've heard it mentioned with some buddies of mine - but not sure what you all know about it. (I'm clueless!) Any helpful advice would be awesome!

Kim