Quoted from Bos98:I am about to change over my JM, as I have decided to give up the dimming effects in favor of an overall brighter experience.
You don't need to give up the dimming effects with the LEDs - get an LED OCD. I put LEDs into my JM and actually missed the GI dimming. I ordered and installed (easy) an LED OCD and got the dimming back. They custom programmed one and built custom cables for the controlled lights of my Black Knight that I have a set of Comet LEDs going into. Highly recommended!