I have a question regarding those little laser pointers that you find at pet stores like "Petco" or "Petsmart". My girlfriend has one she purchased for the cats. The batteries have since then died and she let me pull it apart. Unfortunately, it was caked in so much glue that I damaged some critical internals trying to get it apart. What I noticed on the PCB board was a "tuneable" potentiometer (the very same slotted head dial you find on typical laser pen mods). I went to pick her up another pointer the other day at Petco and found one like hers for only 3 bucks. I had no intentions on wrecking her new one but I noticed it looked a lot easier to take apart. Would it be worth it? has anyone tried this?