Biowire echo and skillsoft emulation, where to store it, buy the skillsoft as a complex form? Options

[Banaticus]

"Technomancers with the Biowire echo can use threading to convert skillsofts (in storage accessible to the technomancer)..." How do they store this?

"makes a Threading (skillsoft rating) Test. If the program contains other program ratings, raise the threshold by the number of program options or rating points. If he succeeds, he has converted the program into a complex form. He can now either sustain the program as a normal threaded complex form of the same rating or memorize the skillsoft as a complex form by paying an amount of Karma equal to the rating (+1 for any program option or program option rating)." Wouldn't this potentially give a lot of skills for a small amount of karma (with a -2 penalty for each sustained complex form).