Complex Forms are not programs, and are subject to different rules. For example, the limitation is based on Resonance.
Good echoes... Depends on what you want to do, specifically. For example, by combining Overclocking, Advanced Overclocking, Biowire, Acceleration, and Mesh Reality, you can end up pretty terrifying - 5 passes, some number of which can be used for meatspace, the ability to simultaneously act in meatspace and VR without penalty, skillwires with rating equal to submersion grade...