thats what mid rate is... to have a bit of both. Low rates focus on grind ( exp , crafts ) high rates on pvps where u can buy any gear. In mid rate u have to grind to 99 and craft but not as hard as low rate and after pvp like a high rate. Im not saying low rates dont have pvp or high rates grind but mid rate is a perfect balance of both. As for high five mid rate there is 1 of these in every corner, a new one opens up everyday. TAuti mid rate is something unique that as far as i have seen doesnt exist. And because of that it will attract all the mid rate population because u will be the first to open it in english.Ofcourse it needs proper advertisment but im sure u can handle that :D
As for the rates x10 sounds pretty good