I guess my question is could you merge forms that need to be sustained... and then sustain it as a single form. RAW it appears so unless I am missing some sort of text in the description.
For example: Thread Infuse Firewall, Sleaze, Static Veil and sustain as 1 form? Seems a little OP (granted Fade, but groveler, sprite, -2 for stream, otaku, ect... seem to make it pretty doable). Or does this kind of powering up simply level the playfield compared to decker and their dice pools/programs/deck/cyber/bio... How well does it scale in your opinions as you submerge 3+ times and can now maintain 2+ forms (meaning 2 hyperthreaded boosts). Raw power wise it feels like a huge power gain. But looking back at what your starting with as Technomancer, the power ups seem to simply balance out all the decker tricks. Just theorizing so far so no hard numbers to compare, just gut checking...