In the mean time

I've finished to analyse stats of the positions of N17 Gangs.
What we have previously missed was the access to weapons! A juve can't access anything beside pistols and ccw. That could explain the -15 credits difference we have seen. Gangers were often -5 credits (just basic and limited access to special).
I've also looked at the advancements, in particular for Ld, Cl, Will and Int.
So, I've recalculated TG cost for our 5 positions in Inquisimunda:
Leader.........+100TG
Species baseline +1 to WS, BS, W, A, +2 to Ld, Cl, Wil, Int
1 bonus skill
Access to pistols, ccw, basic & special weapons
Additional advancements: +1 from WS or BS, +1 from W or A, +4 from I, Ld, Cl, Will, Int
Champion......+75TG
Species baseline +1 to WS, BS, W, A, Ld, Cl, Wil, Int
1 bonus skill
Access to pistols, ccw, basic & special weapons
Additional advancements: +1 from WS or BS, +2 from I, Ld, Cl, Will, Int
Warrior...........+25TG
Species baseline +1 to WS, BS, Ld, Cl, Wil, Int
No bonus skill
Access to pistols, ccw, basic weapons
No additional advancements
Heavy.............+50TG
Species baseline +1 to Ld, Cl, Wil, Int
No bonus skill
Access to everything
Additional advancements: +2 from WS or BS, +1 from W or A
Initiate.........+zeroTG
Species baseline +nothing
No bonus skill
Access only to pistols & ccw
No additional advancements
Everyone has access to wargear, contrary to N17.
These costs are exact to +/- 1 TG, so it's not fantasy ;-)
I swear it's purely fortuitous that the costs escalated so nicely at the end (0, 25, 50, 75, 100).
Yes, initiates are "free" (add species cost & equipment). After all, they are just bare fighters.
Warriors are standard.
Heavies are really interesting. They can be "specialized" since you get 2 improvements that you could freely attribute to WS and/or BS (could be +2WS or +2BS or +1WS, +1BS).
Champions are what they are: potential Leaders.
What do you think about it?
I will include this into the next update of the main document.
Species are next!