Stevezero I've heard many people talk about being intimidated by the 150. I don't own the 150 (only the 100), but with the 150's reputation I'd probably be a little weary too. I've heard more stories about thrown props from that engine than any other.

On my 100, I have a cline regulator and I use an electric start. In all honesty, it's the easiest engine I've ever had to start. No priming or anything. I just burp it with the electric start and off it goes. It's never thrown a prop, (which the 100 is not known for doing anyway) and has given me 0 problems since I've had it. I don't know what it is about that 150, but it's got a reputation I make it a point to run the 100's highend slightly on the rich side. (~250rpm off peak) I keep the low end needle as lean as I can get while getting a smooth transition to full power.