Here’s my take on it in Rusty’s situation......

It just comes down to $$$, and how bad you really want to know what it’ll do in that particular application..... at that time of the season.

If you want to know bad enough....... pull the motor when you’re getting into that part of the season and head to the dyno.
Baseline the motor with the current fuel and tune...... swap to the Q16, and start tuning.......and see what you can get out of it.

After you’ve gotten the tune for the new fuel dialed in, and if it picked up enough power to make it worth track testing....... see what happens in the car.