No prob, I'm like that a lot too. It'll look like I should do something one way but I ask around first anyway to be absolutely sure. It's always good to hear from the been-there-done-that crowd before I proceed. Sorry, I forgot the part about twisting it to remove it. I was thinking it was just a straight pull. Just did this last weekend too... geez.
I did the headlights the weekend before last and had never changed a headlight like ours before where there was a retainer clip you screw down. I was used to simple twist and pull stuff like the round parking/"fog" lights you're doing today. I think I bent the clip a bit trying to remove the first one before seeing a screw there and so it was a real pain getting it back in place to screw down again. The second headlight was a snap once I knew what I was dealing with. Always best never to assume anything.
I like the Silverstars a lot but in my own opinion the PIAA W2's don't quite match them (the W2 is more blue). It isn't enough that it bothers me too much at all, but everyone is different. Looking at them shining at you is one thing (fairly white-looking), but from inside the truck it's another story... pull up close to something like your garage door or whatever and they'll look quite blue. Don't get me wrong though - I love the W2's from PIAA - big improvement! I'm in no hurry to change out my Silverstars because I just got them, they ran me $45, and they're great, but I can see someone wanting to get the PIAA headlamps to match the W2's because from in front of the vehicle the W2's look very nice. The Silverstars made those round lights look even more pathetic, and then I left one of the stock bulbs in and compared it with the W2 and it's a HUGE difference. You'd just about think you could drive around at night with just those on. :-)
Next thing may be some brighter horn lights... I love cheap mods! :-)