FX FX STX Superior Liner, 700mm, .30 caliber in a Zelos

I have ordered a conversion kit from Paul of Paul's Urban Hunter on YouTube. You order your own liker and I chose the FX STX Superior. Can anyone recommend some slugs it might like? The FX Hybrids seem to be an obvious choice and I have them in the cart but I would like to order a couple more options to play with.
Check out nielson specialty ammo too.