That is what really matters. Unless you are RPing your character and your unit/Clan.
Aside from that, I don't think it really matters.
Most of us know the difference.
I think the "trick" question would be why or how the Clan units received their IS names or how the mechs received their initial Clan names prior/post production?
Make it about Mech/Lore trivia
I.E. the Thor/Summoner if I remember correctly was referred to as Thor because of carring the AC/LBX, and the ERPPC - Thunder and Lightning as the IS pilots did not know it was called the Summoner.
Edited by 8100d 5p4tt3r, 04 May 2012 - 05:56 AM.