The sabre has a forward firing turret already. Yes it's not as agile as an eagle but it can still out-turn a titan, exactly how it is in vanilla FL.
The only reason it gets beaten regularly is because not many people actually use orignal FL ships or mk2 versions because they're using imported ships that don't lose parts when hit by missiles.
However, there does appear to be at least 4 unused mounts on the sabre that are used on the dagger/stilleto... perhaps a bomber version of the sabre to deal with all the kusari navy capships threatening outcast space?
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As for the miner, ok, I can see the reasoning behind an increased hold on a miner, but, you have to shoot little rocks which might or might not drop loot so unless igiss alters how often and how much loot gets dropped you can't make mining faster.
Though theres nothing stopping escort fighters shooting the rocks too, that would speed up how long it takes to fill a miner.