How many screws do you have to unscrew? i've heard people say 3 and other people say 2. Then, i saw an upclose pic of somebody who removed the inserts and it only looked like 2 screws were holding them in place. If so, i believe i can get the inserts off without taking off my whole wheel. I went outside and looked and it seemed like i could fit my screw driver in and twist the screw out. This is possible if theres only 2 screws. Please help.