[Fot] GT6 Clutch Choices?

[Scott Janzen]

      I'm assembling a new race engine. The NOS Laycock Sheffield (sp?) clutch
that I bought to install, a two piece assembly of pressure plate and what
looks like a surrounding domed shield that bolts onto the flywheel over it, is
several pounds heavier than the AP (Automotive Products) unit that is on the
other engine I have.  Anybody have any input on failure rates, relative
merits, etc?  I hate to bolt this really heavy Laycock unit onto the aluminum
flywheel I got to reduce weight in exactly the same place, but now I'm
wondering if there is a good reason it is so much more substantial than the AP
unit.