The strategic reserve should grow past its start once AIP gets really high.
This is certainly in need of improvement. Right now, in a diff 9 game, the Reserve has a cap of about 12,000 strength all game (since AIP is fixed at 200 for non-Lazy). By the time AIP hits 200, the Special Forces are throwing around 40,000 strength.
For Diff 10, it's 24,000 for the Reserve and about 80,000 for the SF.
Those numbers should be reversed, if anything.
Of course, I also think the Reserve spawned units should match the tech level of the planet, rather than being Mk V always.
AI ships will often stop moving to duke it out with enclave drones. Ion cannon will shoot at enclave drones before other fleetships. And enclaves are still a bit too strong. Drones every 7 seconds?
Enclaves don't actually do that much damage. A Mk I enclave can have 5 spawns alive at once, for a maximum DPS of 57,000 per unit, and a cap of 114,000 DPS. In practice, you only get that if your target is directly on top of the Enclave - Even a short range travel time of 3-4 seconds is about 12-18% reduction in damage by the drones.
Compare that to other starships: About the same as Raid starships, but without any of the bonuses. Slightly better damage than Leech and Flagships, but again, no reclaim or attack bonuses. 40% less damage than Plasma Sieges. Much less than half the Bomber starship DPS, and barely third of a Spire Starship's damage. Aka, it fits right in the middle of the starship range.
Since damage isn't really their thing, Enclaves have two purposes:
1) Free units you can throw into Guardpost/Fortress/whatever range to get off 1 shot before dying, that won't cost you any Metal or Reprisal.
2) A mass of disposable targets that mess up AI targetting priorities.
Note that 2 actually works against human units, too, if you ever attack-move or FRD when there are Enclave Guardians around. Humans can redirect, though, when the units act stupid.
1) This is a very long, slow process if you really want to 'siege' an inconvenient fortification. Taking out bad pair, say a Fortress and MLRS under glass, can take Enclaves litteraly hours. Some set ups, like most Bunkerer and many Rude Gestures, are so fortified that even a full cap of 9 Enclaves can't do anything.
2) This is a usually a mixed benefit. Drones can soak up shots, but killing drones lowers the Enclaves DPS - a drawback unique to this unit. If you made the AI units completely ignore drones, then kiting and attacking fixed units would be OP. Otherwise, no matter what, the AI will waste shots on disposable units.