Andrew,
If the is split is down the middle or you have players from three different areas on one team will you consider using both venues? I,myself am not a big fan of area teams practicing at one venue..Somtimes people will manipulate the system to ensure that they are the ones not doing the traveling..Coaches,managers and board members to name a few...I feel that if you are willing to play at the challenge level then you should be willing to make that trip across town once a week and then these teams will not have players participating for the sake of convenience