I got T-Stick +'s which were great for ease of switching, but I wasn't crazy about the short stiff throws, and neither was anyone that tried them. I ended up taking them out and installing Happ's Competitions. I preferred learning to play 4 way games in 8 way mode with them to using the T-Sticks.
The newbies that tried playing stuff with the T-Sticks hated them. Gamers adapted quickly, but still didn't like the feel.
Not sure if that info will be helpful or not, but there it is.

Edit to add... If I was to do it again, I would just add a single dedicated 4 way and wire it to stick 1. Don't think there are enough games that use multiple 4 ways to worry about more than that. Since you're doing a new build from scratch and sticks are cheap, that's the route I'd go.