the local group has many type of springs and coilover installed.
Tsportline is one of the setup I find it have a smoother ride than stock, not softer, but less rebound that make you feel up and down
the feeling is very subjective, it depends on a lot of things. We tend to test each members setup on the same road same speed and have 2 or more people on the car. If you have never tried on other setup, you won't know the best setting for yourself. MPP is great, but when you have that kind of money to spend, probably sway bars, big rims, camber kits, slick tires are also on the car.