I now have about 5 gallons of fuel through my 91CD.
I just thought the engine was smooth during breakin. All throttle settings now produce an equally smooth engine throughout the entire throttle range.
I just thought the fuel economy was good during breakin. The low fuel consumption of this engine is amazing.
It will run almost twice the time on the same size tank as my other two 91 four stroke engines.
I was impressed when I first ran the engine, but even more so now.

My hat is off to RCV. This is truly an exceptional product.