Don't like digital trim feel
I'm not sure I know what you are saying. My 9C and some other computer radios I have worked with have a trim button that you push in the direction you want to trim; not two different buttons for up/down and left/right. In either case, I set my trims to make larger changes for first flights to get the plane as close as I can, then I adjust the trims to make very small changes in subsequent flights. I find it easier to hit the button once, rather than trying to make exactly one click with a mechanical slider while flying the plane.