Knowing nothing about nothing I'm going to throw out my opinion here
In my mind the extra wear encountered on the added clutches is a non-issue. They are housed in the TC in which everything is spinning the same direction, clutches, fluid, everything. The spinning creates centrifical force which will keep everything very stable (think of a gyroscope). As the free floating clutches move closer toward the faster spinning surface, they would be repelled away by the fluid pressure built up from the close contact. Remember these are clutches, designed to handle a certain amount of slippage under exstream pressure while the differential speed equalizes. The force from only their own weight should be negligible.
Anyway thats how I imagine it to work in my mind.
I would be more concerned on what keeps the clutches in alignment, they appear to free float between lock and unlock.

In my mind the extra wear encountered on the added clutches is a non-issue. They are housed in the TC in which everything is spinning the same direction, clutches, fluid, everything. The spinning creates centrifical force which will keep everything very stable (think of a gyroscope). As the free floating clutches move closer toward the faster spinning surface, they would be repelled away by the fluid pressure built up from the close contact. Remember these are clutches, designed to handle a certain amount of slippage under exstream pressure while the differential speed equalizes. The force from only their own weight should be negligible.
Anyway thats how I imagine it to work in my mind.
I would be more concerned on what keeps the clutches in alignment, they appear to free float between lock and unlock.