I can't find the rules for what you're allowed to do placing asteroids. I assume you aren't allowed to start placing random templates down when putting asteroids, but the only relevant rule I can find is at the bottom of the tournament rules:
Custom “setup” templates designed to aid players in ship deployment are not allowed. However, players may use their range rulers and maneuver templates to help them set up formations during deployment.
The reason I ask is we had a player raise an objection to another player using a 5 straight template to measure range 2 from the board edge. Obviously the 5 straight and range 2 are the same thing, so I don't know why that player has an objection, but curious what the rules have to say.
In the same vein or if it comes up again, are players allowed to use a 5 straight to measure range 2 when attacking, checking arcs, etc? I saw it happen at worlds all the time, but could a player have objected?