I was just saying I don't have a need to push my engines any more than they already are right now. I wasn't really questioning reliability.

I spun up the twin ring engine today for the first time (identical setup to the last single ring engine I put together). I have to say I'm impressed but not quite how I really expected to be. I found a little more top end (about 150rpm) but the idle was much improved over any of my single ring engines. A full 200 rpm slower (reliably) and much smoother sounding and then the transition back to "power on" resulted in less hesitation (not that there was very much before) and a stronger sounding "pull" up to full throttle. I'm gonna stick with dual rings from here on out. I'm a believer...