[Ruatha]

I never build space yard bases, they need maintnance and colonizing a small or tiny planet in the first system, there building a shipyard, gives a shipyard with faster construction rate and no maintnance needs.

example
(2 turns to build colonizers on home world, three on new worlds):

t1-2: 1col ship at homeworld.
t3 colonize neighbour
t4-9 build space yard there
t3-4 new col at homeworld.
t5-6 col new world.
t5-6 new col ship at homeworld
t7-11 new shipyard at new colony 3
t7-8 col new world.
t9-14 new space yard there 4.
t9-10 new col at homeworld.
t10-13 new col at first colony 2.
t11 send colonizer through wormhole (unless that's already been done)
t11-12 new col at homeworld.
t12-14 new col at world 3.
t13-14 new col at homworld.
t14-17 new col at world 2.
t15-18 new col at world 3
Now the other colonies start to kick in and in an exponential curve you'll soon have 40 planets! (Some must start to make resources)