I've played about with several house rules to try and get answer for some of the problems that have arisen on this topic (I had a LOT of spare time then). The one above seemed to work OK, so I'm using it in a mini-campaign were doing at the moment. Some rules didn't work (mucking about with e-mines changed the way the entire fleet worked) and limiting the number of fighters that could be in contact with a single ship has been used for several fleets (overcoming stealth, etc).
Tom