I'm thinking that the safe option for my application (it's not a race car) is probably a standard weight (28lb) flywheel.
A possible alternative is the 22lb version.
A 14lb steel flywheel or an even lighter version in aluminium sounds like it would be too much of a compromise for my application... even if the Kirkhams would say I'm nuts.
The light weight flywheels would allow quicker 'blipping' of the engine, but I can't see how - apart from a tiny percentage of weight saving relative to the weight of the car - this would result in significantly quicker on-the-road performance.
I'm not too old to learn, so tell me if my logic is wrong
Cheers!
Glen