RE: SAP 180 (Syssa Performance)
No, but the Nordlocks on this and the 2 other gassers I have (one flying, the other on a test stand) are keeping the exhaust screws nice and tight with zero backing off. I did see the other posts, and I have to say the Syssa and the OS GT-55 are the nicest I have seen, especially when you look inside them.