Not really ahead of its time. Prince already had their O3 racquets in the market already, and the 16x18 pattern in a number of their other 100 inch heads (e.g., the original O3 Tour 100). I used both the original O3 Tour, as well as the EXO3 Graphite 100 and EXO3 Tour 100 (16x18) -- the longest with the EXO3 Tour for a little less than a year. The only thing usual about the EXO3 Graphite was Prince deciding to incorporate its port technology into the Graphite line.
A number of my friends who were/are Graphite users absolutely hated the stick, and basically felt it was blasphemous what Prince did. To be honest, the EXO3 Graphite was hit or miss for me, but I initially played very well with it. The (to me) awkward balance and high swingweight paired with the 16x18 pattern was great for hitting heavy balls. I absolutely detested the feel though, like I do with the port frames, but I just dealt with it because I liked the results I was getting with it initially. Eventually, I was struggling with flattening out balls and control to me was a bit lacking, and I moved on from the stick after the honeymoon period wore off quick. Actually, aside from hitting topspin groundies, I struggled basically to hit anything else with the Graphite.
I've also tried the 100T (including the ESP version, as well as a number of the new Prince frames), and frankly I did not like it. Too weak/wimpy and unstable for me, but I honestly felt the same way about the original EXO3 Tour Team. I obviously liked the Tour 100 (16x18) much more since it's very similar to the EXO3 Tour I used to hit with, and I honestly don't think there's all that much difference between those sticks.
There's absolutely no comparison between the 100T and EXO3 Graphite. The Graphite is way more stable and solid, has more plow, and hits a much, much bigger ball, but it's also way more sluggish to get around. I believe the swingweight was in the 330s.