I'm gonna do something outside the box. I'm going to agree with Karnak. The disengagement rule should be kept. If you Taco Bell, you lose an hour, or whatever, in the hex. It may not mean much in your average asteroid hex, but if it's a VC planet, and everybody is dogpiling it, losing a DN for an hour means something. Also, players getting killed shouldn't be rewarded with a half DE penalty if they're flying an attrition ship. Be it an NCL, D5D, MCD, etc. they shouldn't be able to simply go back into the hex because they threw away a 2000 BPV ship that can be replaced as soon as the shipyard reloads.
I know nobody likes more rules, but I'd suggest that anybody losing a DN-CA has a 30 minute penalty, but CW-POL gets the full hour on a hex.