Tuning with Meth injection (Coyote motor)

Just wondering who out there has tuned successfully with meth injection? (on the Coyote)

Last year I attempted this and found that water injection only was much easier to tune with little to no meth being injected. I was having issues with it throwing off IPC torque. The more fuel being added that the ECU doesn't account for the bigger the issue. I ended up being able to achieve what I was hoping to with water injection only. This year I have much bigger plans and I have seen some photos of guys running meth with success. I would really love to hear a successful strategy. Any insight would be greatly appreciated.

****sorry this was meant to be posted in the American forum.