I got many uni broads in my day. I have a yellow, blue, 2 silvers, and 2 blacks. don't sleep on these. this marker has one of the best silvers out there. The yellow is a bit streaky and the blue doesn't cover great, the black and silver are almost always in my pocket. but the reason these are great is the marker body. They are the perfect size! get some extra nibs with these tho.
I think Bobby Hampton (above comment) summed things up real well here. I like these caps a lot and although you do have to press down and forward to use it, it's not beyond the wit of man and kind of reminds me of a dual action airbrush function. I'm able to get nice lines and smooth blends with this cap. All around a great "do it all" cap.
So far I have prototyped these just making lines and some practice fills and I really like the feel and control of these caps. Nice squared lines that vary with can distance from surface and the fill ins are solid and smooth.