Another question. How do other aircraft engines that allow both types of fuel handle the issue? Im assuming the engine manufacturers have similar or dare I say it, better knowledge about these problems?
There is a bucketload of material on this. Try this to start. You'll find more with the EAA, possibly AOPA and I think the Cafe Foundation.
Petersen Aviation | Auto Fuel STC
In short (aside from octane issues) Mogas compatibility has to do with fuel pump configuration and fuel line fitting metal composition. The engine itself doesn't care much, its all about getting it to the engine.