[mac5732]

what does he have in the systems touching yours? Colony wise?. Could you sneak a clocked ship or small fleet in and trash his planets or refueling depots in that system. I know you said you have 2 empty ones but what about where he keeps cming thru. Anyway you could mine both sides of wormholes. This way he could get some thru the one side and hopefully some would be damaged where you could capture them on the other side. In either case, he would have to stop for the fields before he entered into your system giving you warning or chance to attack him at the wormhole or build BS on wormholes to back up mines. Can you increase your production in anyway?

just some ideas mac