Well, go ahead and get the slide tool and see how inconvenient it is.
About the warranty, who actually has any warranty left?
What happens when you burn out your eject motor for your dvd drive from forcing it in and out, over and over and over?
The fliptop is a piece of cake to put on, have you ever taken anything apart before? If you have you'll have no problem with it. Eight screws to take off top of case, then be careful about the only thing that could make it go wrong, the "wires" going from your eject button to the inards of the ps2. Then 4 little screws to take off the dvd drive cover, and change out the magnetic white disc from the PS2 to the fliptop case. Change over reset eject button, put in screw to hold it, put back together.
Then, TROUBLE FREE SWAPPING!