Did you also post on FB? Someone did recently about a Level 10 build for the Stinger, and there were a LOT of people warning that Level 10 has a long track record of "bulletproof" transmissions for Hyundai/Kia that either showed almost no work done, or crazy failure rates, etc.
Not to say this is true, but you might want to check around and look at a few reviews of Level 10 before blindly going for it. I looked at Level 10 once or twice for some other platforms (Subaru, Infiniti) and the reviews were very mixed.