ok so i'm tired of my wagon feeling like i'm a boat floating on the ocean on the expressway. i know stiffer shocks will help but what should i do about springs? i was thinking maybe some impala springs but i already tear the rear of my wagon up on inclines with stock springs so i know imps in the rear would make it worse. what are my options here? i don't wanna feel like i'm riding on a wooden board but i also don't wanna feel like i'm out on the ocean fishing in rough sea's.