You can do it properly if you take you time. If you are content with cutting your springs, measure a few inches around the coil, marking it in increments. Be sure that when you mark the coil you want to cut, it is the "dead coils" in small increments. Start by cutting a small amount at a time, but beware that excessive heat can do damage to the spring itself. The biggest factor is determining how much you are trying to drop the car. If you are going less than a inch, then you could cut the spring. IMO and experience, anything greater than that, it is best to buy lowering springs. I have done it before to several cars. As long as you measure, cut properly, and take your time, it can be done.