RECIPRO-CURVE circle/arch cutting reciprocating blade

[GG2]

Hey fellow craftsman. I have a patent pending on a new reciprocating saw blade design and would like some of your opinions on it. I'm getting ready to take it to market. It's called the RECIPRO-CURVE and for all you guys that have tried to cut circles with traditional reciprocating blades or are sick of expensive hole saws, this is for you....check out this link and let me know your thoughts.

http://www.youtube.com/watch?v=Td4TSzqQxB8

The blades will likely be $10 - $15 and a single blade can cut from about a 1.5" hole up to 15" or larger. Small hole saws will still have a place but larger, very expensive, easy to ruin, tough to use ones may be, for the most part, replaced by the RECIPRO-CURVE. Also, cutting holes larger than 6" (the largest hole saw) will be possible at a whole new level. Thanks guys, I value your opinions. Let me know if you have any questions.