When I had my T-sticks I had the same thoughts about the travel and feel. I went to longer balltop shafts (Andy sells them), softer microswitches, and shortened and stretched the springs. It did improve the feel, but those sticks are just inherently going to be short-travel and somewhat notchy by design.
If you can handle an under-the-panel 4-8 way adjustment, GGG's Omni2 is a solid choice for a switchable stick.