I installed the Progressive drop in kit on my RGU. It dropped the front end about 2". The bike rides nice as the front end dive is almost gone. I have bottomed out once when I went over a pretty big hole at a bit too much speed. I have the road glide custom rear shocks installed. I also had to put on a 1" lower kick stand. I probably could have used the kick stand angle blocks but did nto thinka bout this until I had the shorted kick stand.
2018 Road Glide Ultra, Electric Blue, Lowered Front and Rear, Heated HD grips.