I don't carry a Caly, but I do carry a Native, and a D'allara.
The D'allara is quite bulky in the pocket, that being both width, and thickness. It is a bit of a pain getting other things passed it, but I have to carry it in the middle of my pocket to make room for my beeper. I found the D'allara to be the easiest spydie I have to open. It's like having a Native with a power steering pump attached. It slides open as smooth as a hot knife cutting butter. At first, closing is a bit more difficult, but then it becomes almost equally as easy as opening, and can be done with one move as opposed to two or three with a lockback. I have to use my thumbtip and thumbnail to depress the ball, and then with a light flip, swing the blade shut. It should be noted that this becomes somewhat more difficult if you are wearing gloves. In which case, you will have to pinch the ball with your thumb and index finger, and that may be a bit tricky. I also had trouble for a few days after I bit my thumbnail(I usually trim). I had to use the pinch trick, and decided to edc another knife until I grew a little bit of nail back. Although this sounds troublesome, closing the D'allara with one hand and one movement becomes habitual, and you may find that going back to a lockback will seem less desireable IMO.