depends on the spring but if you are dropped over 3" then your front a-arm is really close to bottoming out...and if you have camber kits then it gets worse cause they sit on top of your a-arms...
its ok to have ur after market springs snip a little but nothing too much 1.2 should be workable to cut. Thats what i am doing in the next couple weeks to make mine sit lower. But if you afraid of cutting them you can always heat them.. I wouldn't recommend heating them over cutting because its actually worse lol
Safest bet buy new springs or get some coil overs lol