Yes - don't do it. I mean my parts truck has cut springs on it and although it didn't pop a spring when the PO rolled it twice, I wouldn't do it myself. It's ride height is low but not OTT and even though it was hell beat up, it drove o.k. and felt competent on the road (yes, I test drove it with the corners of the cab crushed and the windscreen completely out) It will lower your truck (goal obtained) and stiffen the suspension (bonus second objective). But it's not as easy as cut off one coil and you know how much you've lowered it (different spring rates, different numbers of coils, different ride heights...) and it will affect the integrity of the spring (same load, less spring to absorb it). If you are going to do this, go half a coil at a time. Cut them, drive on them for a week and let them settle in. DON'T GAS TORCH THEM LIKE A MORON. This is an instant game over for the spring and is completely unpredictable in regards of how it will affect the integrity of the spring (whatever it does the metal has been overtempered and will lose it's elastic properties)

Use an angle grinder with a cut off wheel, clamp it down firm and play safe.