What is everyone's opinion on lightweight flywheels?

[FORSFED]

Well, it sounds like there's an even mix of opinions from everyone. From what I'm gathering, it seems like it'd be a wise choice to just keep the Fidanza I am using and work on tuning and adjusting things to keep it from stalling. My question is what things would I need to look into changing? Is there much that can really be done or is this a problem with the ecu where the engine is decellerating faster than it thinks it should be?

To answer Jakey's question I do have an eprom ecu with all of the goodies but no change to the idle speed.