Don't have any experience with the Indian Creek but just had a dealing with Jebs. I called them to talk about there High Voltage Chokes because im building my wife an 870 20 gauge Turkey Gun. I explaned to them she would be shooting TSS in 9's. They recommended the .565 Head Hunter until I explained that it was for her and that I wanted a more forgiving pattern for up close and personal cause she gets tore up
lol. He agreed on the High Voltage in .570 and said that if it didn't suit us to send it back and they would send the next size of my choice to try. There chokes are made the same the name is basically based on different constrictions. They make the High Voltage Waterfowl for the Mossy 835 in .675, .680, .685, .690, and .695. from what i've seen and read on here the Mossy is gonna like it somewhere between .675 and .685. They really are great people to deal with. As far as Indian Creek goes like I said i've never had any dealings with them but have never heard anything but good things about them. Don't know for sure if they will exchange chokes or not. Sure some one her can chime in on that. Good luck and hope you find whatcha need.