Since most questions are related to Proportions, I'll try to answer questions with it in mind.
Proportions' torpedos do not suck
PvK improved them. In stock SE torpedos are (almost) useless.
Meson bLaster is a very good weapon. Just remember it has size 20, while APB, DUC, etc. take 30 space ! you can put 50% more MB then APB on ship.
Proportions' fighters use supplies during strategic turns. Do not keep in space for long.
To increase range of your ships, use efficient engines. You will lose some speed though. It is a good idea to have 1-2 supply bays on each ship. It may save you when enemy uses engine killers. Still, few supply ships is a good idea.