cut em with a zizz wheel. opinions on this is like a asshole...everyone has one. All i can say is I have cut springs on my 4000lb pickup with a iron headed big block and its the shop truck so hauling motorcycles, engines, and pulling car trailers have been the norm for 5 years and i have not had a single problem. I aligned the truck in 20 minutes 5 years ago and its been great since