@verdroid : aww, so I'm not a Behringer serial broker lol... Yes the top of the sliders just go away easily, but this I could fix, the nobs are another problem, because it breaks, and I should fix it with glue or soder-whatever-device, annoying.
I use the nobs for the speeds of my videos (I have 3 tracks playing at the same time), and the sliders for opacity of each track, and scratching the videos (back and forward fast on the music tempo, before showing the end of the video, makes a good effect). So for me so far it's the best, but I didn't try to use another one. The fact that when you press the nobs it resets to the middle is very useful for me, permits so slow it down or accelerate my video, and when the tempo is good, put it back to normal, makes a cool effect on break in the music for example. When the video is fast, you can not really see what's happening, and suddenly I slow it down and you can see the whole action.
Unluckily, effects available on videos aren't very nice, it's hard to handle, I prefer to make very nice videos and adjust myself the way I play with it. One very important thing I just understand now I'm DJing too, is to adjust very tiny things, like the bass or the mediums, for 2 tracks to go perfectly together when you mix it. In video, that would be translated by adjusting the colors, for example make an image a lil bit more red or green to fit the previous one. But the video softwares are not as precise at this. Most of the time, I can't adjust it properly. So I play with complementary colors (like green fits the red, then grey will fit with soft blue), and that's the way I make my raw videos that counts. I try to prepare it very nice and beautiful, and also I have a very good visual memory that permits me to remember exactly the colors and the speed of the video I'm about to choose before I play it. It's fun because now I'm playing for years, I can set the speed of a video on the perfect tempo before displaying it, because I know my software and my sources by heart :)
Plus, there is something I figured out very recently, is that we people are used to music since thousands of years, we have a very accurate ear, means we hear very little details in it, but that's not the case in video (TV is around 60 years old only). I mean, if I change a slight color in a video, you won't "see" it very precisely, it doesn't make a big difference for your eyes, instead of changing the bass in a music, more ppl can hear it's different. I remember playing with VJ's that were "masturbating" (sorry for the nasty image, but that's true), on changing lil' details on their videos while playing. They were very happy and proud of it, but no one in the show could see it. We are use to fast, colorful, extravagant images, that's the way our brain is made actually. So we have to adjust the images to the audience seeing it. This are the rules, not forgetting that we play for people to enjoy (or, at least, understand) it, and not only for ourselves.
Right now, I'm changing my images. First, I use more soft colors. At first, I was playing with very bright colors, because I didn't know that I could change it first, and also because the video-projectors 6 years ago weren't as bright as the ones right now. So less light was displayed, I had to re-enforce the colors for my videos to be properly seen. Now the VPs are better, I can play with soft colors and it's beautiful. Also I include a lot of tiny images inside my big videos, for the same "technical" reasons. Some years agos, the screens were usually pretty small, so if I put a small image you can't see it. The more it goes, the bigger the screens are, so if I put lil' details it makes it more accurate, and makes you eyes go from one side to the other to see it, it's better, you enjoy it more.
DJ'ing now is helping me in VJ'ing. And of course, my 8 years pro-VJ'ing helps me a lot when I'm DJing. For example, I've seen that I make "significant transitions" in my tracks, without noticing it. When I'm displaying videos, one good way to go from one to the other is the subject. For example, if I display images of cars, it will fit good with motorcycle images then next, or roads, or town streets. This is a "significant" transition (mwaha, it's what I learn to my students). So I do the same in DJ'ing. I've noticed that after a track where there is certain words in the chorus, I play a track with the same words next. That's fun and very interesting to go from one type of mix to the other (from VJing to DJing I mean).
So that's all. I KNOW, I always write a lot.
Thank you for reading