I am also very optimistic about this simple mod. All I can see changing is possibly trying to calibrate this via hole size in the bottom plug and watching what happens via a system monitor. This would let us see what the computer is actually seeing and we could adjust the hole sizes to get our target A/F mixture. This would also be pretty close to universal (not perfect) for everyone to use.

One other neat little thing about this, is since we are not modifying electronics of the O2 sensor, when we start the vehicle it will run in the loop mode (factory A/F settings programed into the ecm.) until the O2 sensor warms up to proper operating temp. This give the "Booster" time to generate Hydrogen.

I believe this will eliminate the main obstical people had with adding boosters to their vehicle's. And that was the thought of having to mess with the electronics of their vehicles.