Been shooting Federal TSS 9's in the 20g. Looking to try something different to see if I can get a more consistent hunting pattern. Fed TSS I'm shooting a super hot core pattern even with the .Jebs 565. if it opens up a bit it's all the better.
If you stay with TSS, it's hard to beat FoxTrot. I like Apex as well, but FoxTrot has performed the best for me.