I noticed a thing of possible errata in First Succession War: The Rules Annex section's Special Case rules suggests using the SLDF Advanced Neurohelmet for games set during 1st SW... and the IO says the helmet went extinct in 2770.
At a glance, the obvious solution is to delete the line. But considering the greed of the Successor states and other things, this may be one of the rare eras when the helmet gets use, hence I regard this as merely possible because IO entry for the helmet notes at least ComStar and Clans had stockpiles of those helmets, and extending this to SLDF forces who defected to Successor States and the States could have captured stockpiles of the helmets. If so, the extinction date would refer to the tech to build them being lost only, rather than the item disappearing from the Inner Sphere, so the helmet would be usable during the early Succession Wars.
Or is the IO's extinction date for the SLDF Neurohelmet incorrect in light of this newer product?
Or am i adhering to extinction dates too much?
Or is the helmet listed there because ComStar has access to them throughout the Succession Wars, with IO implying they used them too in the rare cases they used their forces?
And finally, is this the right place for this or should I throw the question to Ask the Writers board?