I don't see the problem of tec allies sending 1 or 2 envoys to advent home worlds full of  tec wemen for advent men tired of space zombie chicks.

When diplomacy rates are set to faster a tec player can offer a trade pact that boosts all trade income by 15%(plus 2 armor bonuses that work for all units regardless whether it says freightors only with the same pact lol..bug?) at tier 4..

This works because: When you colonize fast, culture lock worlds, build a trade network and get into this pact  u can pretty much spam high dps illums, flak and 4 armor disciples up anyones ***.

Prostitution between the tec and advent is Legal in my law books! The benefits at tier 4 are huge for balancing economies.

Good for 2v2, 4v4 etc

Be sure to lock teams at the start of the game. Cheers