[Trish]

As already said by others also. With the big bores on the car there is a much larger window available for tuning them.
As With there size they are also easier to work on to achieve desired results which were beyond the capabilities of smaller bore shocks.
Load is spread across the larger piston and oil and therefore a more consistent feel is met, yet the pitch feel can stay the same.

I'm no expert but I have been hands on with Grants car and we have tested a number of things. I rounded his pistons which helped in certain conditions.