U dont need to do it like this.
U only have to place the radius over the server that u want with PA 0 and then restart the game when the game is "connecting to online service" u will see all dedis pop up like triangles in DumaOS except the one in your radius.
And u can do this whenever u want after changing the location in DumaOS u only have to close the game (close application) and restart the game.
And will connect only to the dedis within your radius.
I play for the last weeks on spectating mode I think it doesn't matter if u play on a dedi close or not on this game I didn't notice any big difference, but I think when u playing a little farther away from your location u get less BS deaths.
Yes stretched I got exactly the same only i can't give it a number of matches sometimes the match right after sometimes after 5 matches and I play Hardcore most of the time but it then feels for me like I am playing core to get the kills on the enemies or i i am ADS and just put like 10 bullets in a enemy and no hitmarkers nothing he just run off or challenge me and kill me instantly
Bert is right there are peer matches I got thrown a few times in them and have seen the migrating host screen it happened to me only during night time playing.