Doesn't anybody see how to prevent a small ship from tying up a larger one without a disengagement rule? I personally think a lot of dyna strategies have been lost or forgotten over the last year or two...
The disengagement rule has been needed since the days of AF, when the Fed player base overwhelmed their shipyard capacity. Romulan policy was to exploit the weak Fed shipyard by hunting down and destroying ANY ship NCL or larger, while ignoring the smaller ships. Fed counter-policy developed to use their superior numbers to draw the superior Rommie Kestrals into combat with the sole purpose of keeping them tied up while other players entered the hex to run missions safe from harm.
(Deny it if you will, but those were the Days of Deceit, when Romulans cared nothing of honor before the barbarian races. This is fact)
Even after the "Fight or Leave" rule was implemented, the definition of fighting was always at issue. If a drone refit x-NCL(pick a race) throws 6 drones per turn at a BCH while running away at max speed, he may be fighting using the best tactic available to his skill with that ship. Yes, the heavy can shoot down all 6 drones with phaser fire every turn, but that leaves him short of power to close the distance.
When the Drone ship has spent 10-15 min firing the last of his 100+ drones and executes the better part of valor without scratching the paint of the BCH, does he deserve the right to return in 5 min to take another shot at it?