We've found shorter tends to be better when pegging; closer together and easier to get movement across all the right places.
We've wandered through many of Tantus's choices and the Sport is our favorite. A little more firm would be nice, though having the give can be helpful when things go sideways... literally. It isn't has bulky as the P-Spot making it a far less intimidating toy, or if you're not just into the heftier toys. The Sport could use some of the ridges and shapes the found on the P-Spot to add more sensations.
Find a good thick lube to use with the Sport. More fluid lubes run off pretty quickly. Alternatively, lubing up your partner works pretty well too!
The lack of additional bumps to stimulate the prostate is the only thing that keeps this from being a 5 star toy.