Debating if I should keep them at 96k or reduce some more to save weight to squeeze a 1 HS thermal sensor in.
Shaving 50T off of an AMM BFC is probably going to reduce accuracy more than I would want to live with, especially if all I get out of it is a 50T thermal sensor.
If the ships these are on ever travel in groups, the extra sensors don't do anything for you.
So I guess it depends on the mission profile.
If this is a standalone ship/base intended for cheap, minimal, mobile colony defense, then it might be worthwhile.
If this is a mainfleet ship, I'd rather make it really good at what it does, and let my sensor ships be really good at providing thermal info.