<<...weren't tightened correctly...>>

Well, how does one one INcorrectly tighten a spinner? Either it's properly fitted and lined up, or it's not, yes?

The two incidents I have personal knowledge of involved four-stroke engines; which have greater torque than a two-stroke. Is that the difference? I dunno.

But a hobby shop owner told me he stopped carrying the product because some of his customers were complaining that they were breaking the spinner with their electric starter.

Now, I know the kind of guy this is; the one who pushes the button, lets the starter wind up, and then jams it against the spinner. And they wonder why they have that ugly gouge groove around the spinner.

Still, DuBro and Goldberg spinners stand up to this abuse, so the point is made. And the simple fact is that the SIG does not have the additional supporting pins.

You pays your money, and you makes your choice...

Steve