I originally bought two T-Stick's. Then decided I wanted to change between 4 and 8 way without digging around under the CP.
So I bought a single T-Stick plus with the normal microswitches. Original thoughts were that it was too heavy, but I did get used to it - either that or it wore in a little bit. The problem for me was that the T-Stick Plus is different from the plain T-Stick. The throw is much less, the microswitches a little heavier, the shaft is thicker (I have the oval handle versions). The differences were annoying when moving from player 1 to player 2 and vice-versa.
So I now have two T-Stick plus's. And I grabbed the light microswitches for them both. The light microswitches need to be setup correctly - it's not difficult at all, but if they are not set up correctly then they don't have enough spring in them to return to normal position. It's easy to get stuck in a direction. As I said, it's easy to adjust.
And I'm very happy now! I prefer the lighter touch of the light microswitches, both P1 and P2 joysticks match, and the 4 to 8 way switching is simply fantastic. I wanted a switchable joystick but didn't want the switch to ruin the look of the CP. And the build quality of everything I've got from Ultimarc has been great with fast delivery.
Thus ends the advert

EDIT: Just remembered.. the original joysticks were 'J-Sticks'.. not 'T-Sticks'. So they are obviously different..