Well, if you must see dark purple, drink less water and more caffine, but it is NOT recomended. Moderate to light is perfection. If you go heavy, you may be dehydrated and should drink more fluids.

The other way is to do a heavy workout. Lifting and cardio/basketball will turn my sticks dark purple for the first urine or two, but then back to light.

Keep in mind, if your in Ketosis, no matter what stage, your body is burning fat for fuel.

Dont get too hung up on the sticks. I go by my breath/taste more than the sticks.

Good luck,

Ron