The Skyline will take a bit of practice, especially since it's a smaller knife and doesn't have as much blade weight as some other models to help thrust it open. While the RAM doesn't really require it, the Skyline is going to demand that you get your technique down pretty good in order to give you a perfect flip with no help from the wrist, but it certainly can be done, without ever having to take the knife apart and give it a good polishing or anything(although that never hurt anything

).
Basically hold the knife in your hand with the tip of your index finger pushed into the backside of the flipper protruding from the back of the knife. Now, build up pressure by pushing your finger pretty firmly into the back of the flipper, as if you are actually trying to push the blade farther into the closed position and keep it from opening.(I know, sounds weird, but trust me) Next, with a quick flick of your fingertip, reverse the direction of pressure on the flipper, snapping it back toward you and the end of the knife handle. Also, remember to follow through with your flip making sure your index finger ends up flat against the spine of the knife handle. When done properly, and with practice, you will see that little Skyline blade snap open and lock fully without ever moving your wrist. Once you understand the mechanics of it, you can successfully flip most non assisted flippers on the first time, every time!:thumbup:
Good luck, and enjoy.
Jon