I do like the rule in that "A ship must be at a complete stop for one Game Turn before she can reverse."
However I do question the Maximum speed of 5 knots.
During USS TEXAS 'delayed' acceptance trials in 1914 she was required to operate at full speed for four hours, then maintain 19 knots for the remaining twenty-four hours.
After that, they put her helm hard over to port, then starboard, to determine her turning radius. Then came her final test
They rang up full steam astern. I'll let Paul Schubert, "COME ON, TEXAS" finish what happened
"Slowly and steadily she brought up, slow, slower,
. . . stop . . .
and began to gather sternboard, to go aft faster and faster until she was making sixteen, seventeen knots astern . . . ."
Just looking for an explanation to deny a real world capability in the rules.