Choke for 870 20” rs barrel for tss 9’s

[Mossyballs]

Swapped barrels on my 870 wingmaster 3" 12 ga and now have a 20" rs rc barrel.
I currently have a sumtoy choke that was ordered for longbeards and tss 9's. It's awesome with longbeards but not perfect for tss.
This gun will run federal tss #9 exclusively. Is Indian creek the way to go and what constriction?

[Borden811]

I've got a 21" vent rib barrel on my 870. So far the only tss shell I've shot through it was 1 Federal 3" 9, with a Carlson's non ported .640 tss choke, and it printed a very even 321 at 42 yards. It also shoots the old federal heavyweight 7s in the 160-180 range depending on a clean or dirty barrel.

[tha bugman]

My Remington's love Indian Creek Chokes

[Longshanks]

Have a 20" SM barrel on a Wingmaster receiver shooting 3" shells.
Hevi 13 3/2/7's. Hevi 13 Choke .662

280's in a 10 @ 40yds.

Wanting to run some 3" TSS 9's through it so interested in your results.
Shot an Indian Creek .665 out of the 20" bbl and the results were about the same with Hevi 13 7's but the POA/POI was so far off that it made the guns awkward to shoot with Tru Glo iron sights and a Aimpijt as well.