I haven't run the 75 S400 but I do have the 80 S400,... it's great coupled with the 64/71/13 SS. I can't believe you could get much better for performance for all-around drivability. It is a very good spooling set,... it works outstanding in pulling (I pull over 12.5k usually twice a week) and it works great for that,... no lugging,... only go!
I can't recommend anything but MPI (Idaha CTD) setup. Fit and finish is perfect and tolerances are so close it's hard to imagine how it could all be fitted so perfectly and work so well. I am heavily modded and this setup is everything I hoped for. :cheer: :cheer: :cheer: