So... yeah I am kinda ignorant about how those plugins are built up, but isn't it possible to have editted or excluded effects on certain items if they prove to be overpowered by the x10 plugin? Entirely banning an item should be the last step to take, so why not try to see first if it can have different multiplier values? Or perhaps engage contact with the plugin developper about having a Balanced version, since this server probbably isn't the only server that faces these imbalances.