if you want stiff but a nice ride ul need shocks to suit plus shocks go a long way to stiffening up the ride, if you aint got shocks buy the g max 1s n u might find its ok and alot stiffer wiv a great ride
i had g max shocks n springs on my old rover n they were excellent, lovely ride and it handled really good, then when i got my ZS i fitted pi springs wiv standard shocks and always knew i needed shocks to stiffen it up more, now im on gaz coilovers n i love it haha (exept if im not feelin wel, then drivin my car is hell)