Chu Shogi ratings

For what it's worth, the rating system declines too severely once one plays many games. I just beat a 2200 from 1850, and I did gain 12 points but they lost 25. There is no specially real reason why a game should change the rating by less if a user has played more games historically. Thoughts?

The number of points gained/lost is based not on number of games but on the rating deviation (how confident the system is in your rating). Since your rating deviation is a low 49.41, the system believes your rating is pretty accurate so it doesn't change as much