The tips spray just like normal fats and thins, no more of that harsh overspray the female caps cause. They work perfectly normal. Devour, I didnt use a drill bit to make the holes, just a very small screwdriver and small scissors, the hole should be widen gradually until the thins or fats fit snug but not loose. The amount of force needed to push the tip into the hole should be like pushing a tip to spraypaint bro.