I've tried this and my saved campaigns got a little buggy with army movement (had something on rebel's turn I could not get past). So, I went to the scriptorium and checked to see what has been found before on this and I found a thread by Myrddraal that warns of having a value above 100. Here is the thread https://forums.totalwar.org/vb/showthread.php?t=51371

This may affect most the RTW engine then BI and ALX from what I see, but what have those who play RS say about stability of the game with the 260 points?