I have a set of M10 and a set of M15 nozzles to work with. Last night I took Russell for a comparative spin where I showed him what the boost/timing had to be to run the car on pump fuel only, and then I loaded my aquamist program (more timing), and turned the boost up and made a few good pulls with it running - showing him it didn't ping. I will be spending more time with it before I put it on the dyno - I'm not ready to run out and do it just yet. :)