a little update here:
currently i am driving the titan traction master with sintered clutches and 30/30° ramps.
drives and feels like the modified zf one. only relevant difference is the huge assembly clearance compared to drexler/zf units. you can feel that sometimes when lifting/hitting the gas (you feel the moment when the spring is totally compressed)... clearance and feel is just like in the gkn multiplate units of the gt2/3 porsches in stock oe setup.
i personally prefer smaller clearance for a more direct reaction.
so far i did not abuse the car since i installed the titan. only street driving. so track & drift testing will follow asap.