Here's my thought: In 1:1000 scale, one inch equals 83.3 feet. In classic nautical measurements of the period, a "cable" is 600 feet. The "B" range is 5". A cable is 7". I have been thinking of making a new range ruler where the "B"range is one cable, and the "A" range is two cables (14"). While it would mean that the needed playing area might be larger, it might significantly reduce the chance of collision.

What do you think?