TS doesn't really matter as a skill measure, as it really only measures wins against which people.
Still, I have to pay attention to it because I cant always just play people on my friends list, and have to resort to random player matches.
That being said, mine has been stuck at 25....
I generally go even with people in the high 20's and can at least compete with the 30's....
But ill always lose to a Batgirl player who has never played before and that keeps my TS low. I am so free to that dam character