No, it's the first one. Can't vouch at all for anything pertaining to this powerplant. It's pretty cheap engine at $270 so it was a no brainer to get one for testing

My original intent was to run the OS in the plane. But since I had the PTE on hand as well as the header, why not? Plus the rear exhaust configuration really makes it elementary.

On the other hand, I made mounting the soft mount common to both engines so I have options just in case the PTE is inadequate. The OS is a known at this point