I said the same thing some days ago: what happens between UFBs and TBOs happens also with NGT and LX's/FZ5's.
When I was UFB, I had the opposite problem: I overtook tbo's and then an FXO got in front blocking both races and all over again.
Now I'm XFR and happens the same with LX6's, they catch up and pass before T1, they don't pull back, so, until I have a VERY good chance to overtake (remember, they are faster in straights and keep their lines in turns) I stay back trying to pass and lose time. I'm also trying to be VERY clean and overtake when there is a fair amount of space, which slows me down more.
I suggested something like a race car/road car server split, but hey, lets just say it's a side effect of multiclass