I was recently at a tournament where in the final game one of the players was declaring target locks that were CLEARLY too far (like nearly double the range ruler) just so that he could put the ruler down nearby other ships that he wanted to barrel roll/boost away from to keep them at range 3. Basically he was abusing the rule that says you can use the range ruler to check for target lock range in the activation phase. In the current rules if you are out of range you just choose another action.
This was the first time I had seen this in over a year of playing and it left a bad taste in my mouth. I hope its not a prevalent practice. If it was, I think a good solution would be to make it so that if you declare a target lock and the target is out of range you use your action. Maybe its kind of harsh, but it would draw a hard line around it instead of it being a TO's discretion.