Slider Look And Feel

First go around with L&F in JUCE, its pretty slick overall. However, I'm trying to do something in particular that's not as straightforward as I thought it should be.

I want to
1) get rid of the background of the slider,
2) have it use the the 
pointer style, even though it has no min/max values.

The first part was easy, I override drawSliderBackground and do nothing. The second part, I override drawLinearSliderThumb() and call drawLinearSliderThumb() with the value TwoValueHorizontal (also change min/max to be the same value as slider position). 

However, the pointer draws with a little slice of the background (which I thought I killed), see image.