I think you've missed the boat about quick release plates if you've been working with only one QR plate. The "quick release" part of the name really means quick changing of devices on the tripod. To do this, you need a QR plate more or less permanently attached to each body or lens that you would connect to your tripod's head. That way, you totally avoid the screwing and unscrewing of the plate as you change what you mount on the tripod.
I know what you mean. But what I mean is I want quick release system not to screw and unscrew the plate to the the tripod but at the same time I don't want a plate to be mounted on all my lenses, cameras all the time as well. So I would love it to be released easily from the camera/lens as well. What I mean is this system, which is not a miracle to produce in 2017 I guess.
I don't wanna keep or use an allen wrench, I'm a photography hobbyist, not a car mechanic As I see Sirui also uses this screwing system which makes me think that K30 or K40 is the right choice for me.