Armour: Golden Harbor's vest (~1600 base Force shield)
mods:
- 225 Froce shield
- 59% Froce shield

Forceshield on chracter:
With armour - without gems: ~25.900
With armour - with gems: ~18.000
without armour ~16.000

instead of 300 x2 (x2 pasive) =1200 extra force shield I drop 7k.
It is as if the armour (2900 force shield) is no longer added, only the gems seem to count when they are slotted.