No problem.
And llama may agree with you but I know he, and qm before him, like to stay with a nation's theme. Yomi has traditionally been considered one of the weaker EA nations (not sure if things have improved for them in recent CBM releases) so if that's still the case llama might well be open to a boost - but he'd likely want to make sure if was thematic.
But I see what you're saying about having trouble summoning national summons. Not sure if the idea was that you had to either get lucky with randoms and/or make sure your pretender can summon them but there have been other cases where CBM made it easier for mages to cast national summons so that's worth bringing up when you post in the CBM thread.