each T is differentHmm sounds like both would be cool... A more active T would be a nice change of pace, but I appreciate just sitting there looking pretty too.
I just don't want anything that'll get super territorial or teleport up the tongs while I'm doing cage maintenance, lol. I think I can handle an enthusiastic feeding response and a bit of defensiveness or skittishness, as I'm already very cautious and never get too close.
The A. genic I saw was bigger, 4-5". I have yet to see an N. chromatus for sale but it's definitely on my radar. Just gotta see if I can persuade the husband that we totally need more spiders >_>
EDIT: those are some lovely T's you have BTW!!!
I don't have an N. chromatus anymore, but my N. coloratovilosus is like @Enn49 describes. He/she has a great feeding response and a temperament similar to the genic, but is almost always on the move. He's coppied Redrum recently and flipped his hide upside down to use as a lounger. She finally let me put her's back right (Redrum), but Duke won't, he keeps flipping his over.