I would not count on Ultrashift for a substantial change. I bought my trans from Liberty and got the upgraded synchronized unit with the Pro 5.0 shifter.
TTC Transmissions
It is getting better and better after 1300 miles. I only expect it to get smoother. I have no trouble shifting. Granted I am not trying to power shift or anything, that would just be a one way ticket to the ditch. But I can shift quickly and smoothly.
Shifting into third can be tricky if you try and manipulate it. Here is an Olthoff video that explains that if you have not seen it.
[ame="https://www.youtube.com/watch?v=aLFn45lxl_Y"]https://www.youtube.com/watch?v=aLFn45lxl_Y[/ame]
I would get the synchronizer kit from Liberty and install it or have it installed.
Once it is apart I would go with an upgraded shifter also if you can swing it.
Good luck!