I really want to try it. But........... I know that you mentioned that you can't comment on the heat because of other stuff you added, I tend to make my chili wimpy and let people add their own heat, as tastes are all over the place in family. A mild heat is ok. But anything more than that probably is a no go.
The recipe calls for 1 cup of seasoning, which is very spicy for sure, too spicy for my family. I tried a 1/2 cup of seasoning, but it lacked a little flavor, but the spice was mild (probably perfect for you). I settled on 3/4 of a cup, which was perfect for me, but still spicy and tolerable up until the last bite.
There's such good flavors in that spice mix. I would try making your normal chili recipe and adding 1/4 cup of Oakridge's chili spice into it. I bet it will take it to the next level.