But those still need to be "hacked up" to fit the wide-chord low pitch fun-fly props. I know exactly what he's talking about.

FWIW, I think the GoldBerg spinners with their four pins, are the sturdiest. You need a freakin' rubber hammer to install them, but I've never had one "let go". Never had a Dubro let go either, for that matter.

The Sig plastic spinners are flimsy, IMO. My YS 91 ate one in three flights. The DuBro I "hacked up" to fit the APC 16x4 boat paddle lasted 18 months on that engine, and is still being used on another engine.

A lot of "spinner death" I see is directly attributable to pressing the starter button BEFORE making sure the rubber cone is firmly against the spinner. Think about the torque that is being applied when you spool the starter up and then jam it against the spinner.

Personally, I like to hand-start if at all possible. I got one of those Davis Diesel "rooster sticks" a few years ago, and it is great.