Hazmat has good advice there. I wouldn't recommend cutting coils either. I did it to mine, but I understand the consequences and are prepared to deal with them. My roads aren't horrible, so I haven't had any issues with them for that reason. I have to know that if something does happen and I'm left sitting without springs,... then it's going to suck driving back home. It comes with risk though. Take it in stride or not at all if you can avoid it.
My truck sat damn near level when I got my beams and flip kit put in. I personally don't like level and that's why I cut my springs. I cut a half a coil out and it lowered it .75" in the front. I'm getting tired of hitting bumpstops on a few select dips around here on my way to work, so I'm going to be raising the back end up a bit. I plan on reversing the flip kit on the axle and then flipping the shackles for my leaf springs. For me this will be easy because my dad and I already replaced the rivets with bolts because when I bought the truck the leaf springs were only being supported by the underside of the bed. From that, I have two tears in the bottom of my bed from them being rubbed and beaten like that for at least several months.
I also am putting some monster tires in the back. I'll HAVE to raise my back end up for those to not be risked getting sliced by my fender.
I can't wait for the roads to clear up so I can mount them!!