Trying to add ship_speed_mult to friendly_aura, but it won't work

[Apollon]

I'm trying to make the Hyperlane Registrar behave like it used to in old times, where it would speed up your ships when they passed through the system where it was installed.
So, I opened 00_starbase_building_auras.txt, went to STARBASE_AURA_WARP_FLUCTUATOR (I believe that's the Hyperlane Registrar), and added ship_speed_mult 1.00 to the component's modifiers. It had no effect.
So, I changed it to 1000, to see if maybe 1 was too small a value for me to notice any effect, but even at those exaggerated values, the ships were no faster or slower than normal.
The mouse-over tooltip says "friendly ship speed +1000000%" when I hover over the building in the starbase, but the ships just move at normal speed.
What am I doing wrong?

(Edited for clarification)

 

[Apollon]

It seems I didn't explain it very well, and that's probably why I'm not getting any replies.
My issue is that the starbase is, in fact, emitting the sublight speed boost that the Hyperlane Registrar provides - but the ships don't seem to receive any speed increase.
The reason why I believe that the speed boost is being emitted, is that the tooltip says so.
Does this mean that ship_speed_mult is not a valid modifier? Does ship_speed_mult only affect the entity that has it installed, and can't be used for friendly_aura? Are there other modifiers that affect ship speed, that can be used for friendly_aura?

 

[sillyrobot]

You might want to try ship_base_speed_mult. Not that I know it works -- it's just a different modifier that MAY work. It's possible the modifiers only apply to the ship directly attached.

Alternatively, perhaps it needs to be emitted in system scope?

 

[sillyrobot]

I think you may be modifying the wrong item. I think you need to change "warp_fluctuator" in 00_starbase_buildings.txt in common/starbase_buildings.

Add a system_modifier section with ship_speed_mult (look at transit_hub in the same file for an example).