I think I'll leave Wicked Atoner open for Tecumseh and go for either Swimming Stone or Failed Parent, so whichever one you don't take 8-bit.
You mention that Data Processing is based on a different attribute depending on your Network. I don't see any other mention anywhere else to Networks. Could you clarify?
Ah crap, that was an error on my part. It's supposed to be Stream. Anyway, it's the Technomancer equivalent of a Tradition and basically describes the way in which you understand the Resonance and process data.
Scholars process data logically, seeing the Resonance as basically the ultimate source code of the Matrix that only they have been able to tap into. A Scholar Technomancer is the most similar to a Decker in the way they approach the code, and they both rely heavily on a Logical approach. But even so, a Scholar describing their method to a Decker would be like a quantum physicist trying to explain something to a high school science class. They're discussing things that the average person can barely wrap their head around.
Savants process data intuitively. They see the Resonance as an inherent quality of their mind, and essentially have the approach of 'I think it and then it happens.' They interact with the Matrix as if it is just an extension of the self, and could not even begin to describe what they're doing or how they do it, no more than you could describe how your imagination works.
Arbiters process data charismatically. The Resonance to them is a power that ties all technology together, and something to be manipulated. The Matrix is like a living thing to them, a network that connects all things, and with the right orders, can be commanded to do what you will. An arbiter trying to explain how they do what they do will likely explain it as something like either persuasion or command. They ask/tell the door to open, and it does.
TL;DR
Scholars: Data Processing = Logic
Savants: Data Processing = Intuition
Arbiters: Data Processing = Charisma