I believe they were:
Early 250-500
Mid 300-600
Late 300-700
Advanced 300-800 (again, advanced being the inclusion of the Late era X1 ships, actual Advanced era ships being verboten)
In terms of terain, all were used equally except Nebula and Ion Storm. I never allowed those two.
In cycle 3, I began to 'manipulate' the RBG outcomes, since it was not evenly distributing Era's. For Cycle 3, each of the 3 games was one Early, one Mid and one late or advanced. Of course the order they were played in varied.
For Cycle 1, there was no RBG, so I actually pulled out some old D&D dice (these things were literally 20 years old), set up some parameters and rolled them out for each weeks settings. For cycle 1, the BPV ranges were 300-600, so I selected 3 different colored dice, each to represent a different number (hundreds, Tens, ones). a 1/2 was 300, 3/4 was 400, 5/6 was 500. Tecnnically, the highest number possible was 599.
The trick is to just come up with some TBPV's, some odd, evenlly spaced junk. Pull some terms together, stand back and look at them ans say "does this provide variety throughout the cycle?"