Originally posted by ChuckAuger
Which brings on an even more incredible feat. That you are able to run a plastic spinner at 25,500 and not grenade it. Of course I would like to point out that your plastic spinner is more than likely the only plastic spinner in history that has not flown apart at 25,500, but then you probably knew that.
You guys up in Canada are sure getting a LOT better engines
than we are down here! 
I also see in your pics that you have it in the garage..under lights.
It must be the cleaner, colder air...
Chuck - If a spinner is properly balanced, why should it explode at 25,500? Mine withstands 22,500 (although I reduced it to 20,000 before flight by running it a bit rich)
As for the lighting, I have previously stated my RPM's were measured in sunlight....
apapa - since you've confirmed the readings with another tach, you can get more than $60 for it... I've been offered $150 for mine a year ago.