Yeah, I'm just planning on using small lengths of the remaining strip in some miscellaneous projects needing lighting. I hadn't tried connecting multiple potentiometers for simplicity's sake, so I just have everything connected to one pot. Should that work?
Update: With some experimentation, I think I figured out what was going on. I had an extra 10K resistor in the circuit which wasn't necessary. With both the resistor and the potentiometer in the circuit, I was only able to light up the red channel with the pot turned fully clockwise. Without the extra resistor, a full turn of the pot lit up all the channels and gave me the white coloration I was wanting. The green and blue channels weren't lighting up because of the excessive resistence and the fact that they obviously power up at different levels. I was making the poor assumption that all of the LEDs would power on at the same time despite the fact that green and blue light require different energy levels.
deleted_by_moderator