I have done the HID Xenon conversion on both my 2007 RT and my 2016 RT
used DDM tuning both times. done various cars too.
Yes much brighter
needed 2 in the 07 bike, but only 1 in the 2016 and cost the same
I got 35 watt 4500K lights. with slim ballasts
was an easy install on the 07 and a little more tougher on the 16, finding a good place to stash the ballast since this bike has speakers
I have not had any issues with the Cam Bus on either bike.
Every once in a while ( 3 or 4 times this year ) I will get a light out flash on the screen, when first putting on the brakes and I think that's due to the ballast not fully energized yet and pulling a draw on the electrical for brakes ( don't quote me on that thou )
I am definitely a happy camper with them., but I also have my old set of PIAA aux lights mounted and in use for the commute, so I'm very visible