Those responses are why I think this is limited to Six Speed transmissions. But it is not a bad thing, no harm is done to the car.

However with the extremely lightened flywheels, they are meant to have a load on them at all times, except when starting the race...You can get away with a few pounds on a DD, but I would never go as low as 8.5 pounds...That's ridiculous.

But the dual-mass flywheel is for the mass populations, so there are plenty of upgrades available for the enthusiast owner, but normal weight with a single mass is the best option for a lightly modded Daily Driver, IMO.