Old Joe said:oh oh, Moscowy +120 with golden horde, and that is after Dmitri Donskoi crash them at Kulikovo Battle, after he first time dared to hand over the title of Great Knyaz to Vasili I without sanction of hordes Khans, and after Moscowite Dutchie canonised Orthodox Church allover the lands, also without any permissions, when russians payd crakashit to mongols, and when hordes leaders alredy feared to made an open contest with russians, gaving them time to strenghten up, as what was happened, ..and you set it to +120, tell me its just for balance things
Well, according to Jester's explanation in this thread (