I'll try to help this a little...
The whole Idea for the blue background and red needles came from my friends VW Jetta. It really looked good in there, and knowing the Denali/Escalade had the blue background, I was halfway there.
Prior to doing the clearing, I had various needle styles in there, from Ford Truck, to Pontiac Aztek...(in fact, I just completed a set of special measured and cut Aztek Needles for this cluster which will go in soon)
This is what I started with...Standard Denali Cluster from 99-00.
During the day, the red needles really look good in my opinion...
And even better at night. I did NOT use LED lights. I went and bought bulb 2825 and used them. Old trick from the Monte SS forum...Significantly brighter...
And finally, this is the first experiment from the aztek needles... I didnt like the cuts, so I scrapped those out. I have since made new ones and when it warms up, I will install them..
Hope this, and the write up help!
Shawn