Yeah, the lower classes have to be made stronger. In general, more stages would greatly upset the gameplay. As it is, I see quite a few S1 vs S3 comebacks, and it's soooo hard. You put in S4 vs S1, and that is no longer possible. S3 vs S1 is 90% of the time a win for the S3 team, and if you added a probably 100% S4 vs S1 factor, you kinda ruin the chances you used to be able to get, because S3 teams against S1 will quickly get the kills for S4.