the stock porsche type is good, but if you;re using another clutch that is pushtype instead of the porsche pull set up, contact Andy burrows at GD he has a really nice piece of kit at an affordable price.
See attached a xls file with comparisson of the MLP to the stock Porsche slave on my RCR Pedal and GT2 Clutch setup.
it reduces the forces by 25% . Perceived reduction is even more, because the MLP slave is teflon lined to reduce friction. Of course pedaltravel is longer but still ok in driving situation