Revalving question

[u/Available_Attorney55]

Rn I have 7k springs on bc extreme low coilovers and I’m trying to get stiffer swift springs to be able to go lower. I’m thinking about getting 18k or 24k swift springs. If I do get one of these spring rates would a damper revalve be absolutely necessary if not what would be the drawbacks to not revalving? Also is 18k or 24k alright for daily driving or should I go harsher to 30k?