Ligatures for only half the family

I have a typeface with 3 masters: Light, Regular and Bold
I have a /gj ligature that only needs to be active between Regular and Bold. What’s the best way to do this?

Right now I have the ligature in all 3 masters so that between Light and Regular the /gj ligature = /g/j typed as two glyphs – Is there a better way to handle this other than exporting Light to Regular instances without the /gj ligature and feature code disabled. Then generating Regular to Bold with it enabled

There is a Remove Glyphs parameter. Add it to the instances in question and tell it to remove /g_j.

Would that remove the line in the feature code about /g_j?

As long as the feature is set to generate automatically, it does.

Thanks for the help!