Krayzc, the actual spark timing is the same both the Falkon and the CH ignition. The reason the timing ring has to be changed is because the CH ignition is set at 28 degrees before top dead center (full advance) and it RETARDS the ignition timing back to 2 degrees BTDC when the engine is started. The Falkon is set at 2 degrees before top dead center because it ADVANCES the timing up to 28 degrees BTDC after the engine is running. Notice that in both cases, the engine starts at 2 degrees before top dead center, and by about 3,000 rpm, both ignitions fire the spark at 28 degrees before top dead center.

I was on my fourth Ch Ignition (in all cases, one side stopped firing) so the prospect of a more reliable ignition was good news to me. Each of my BME 110s received a new Falkon ignition. I flew it last weekend, and can report that the engine ran exactly like it did with the CH ignition, when the CH was operating properly (firing both cylinders). My only reason to move to the Falcon was to increase reliability, and time will tell.