I have the Big Three!

[Najakeeper]

I vaguely remember blondi sharing the genus with another, but admit I had to use google to confirm. Seems there are 3 in the genus now, pretty cool! Here's my guess as to who's who.

A) blondi
B) stirmi
C) apophysis

You are correct in your guesses and yes, blondi and apophysis have been classified long ago but stirmi is somewhat recent. They have been sold as blondi for years as they are more common wild caught even though they are easy to tell apart for someone, who knows what they are looking for. Still, stirmi is hardier than blondi so for the inexperienced people and the spiders, it was probably a good match.