I would like to see what the unit looks like that the original post refers too.
I have 2 levels and an angle indicator on my rifle and yes it is a little bit cluttered , but managable.
As far as electronic levels are concerned , I had the Microlevel unit that mounts on the occular bell of the scope. Wasn't my thing as it was more of a distraction then any help. At our national event a few guys tried the small electronic camera levels , but they don't seem to last very well in the rain and were plagued with battery issues. Cheap Chineese units they were.
At least my bubble levels' batteries won't die on my