What if I only use betaware, or qualities such a Type-O system?
it's the essence loss = magic loss thing.
to get the cyber/bio he wanted just cost so much essence, his magic was less effective then he wanted, causing a constant spiral....
To get the effect out of his spells, he had to over cast more and more, thus taking more physical damage, thus needing more attention or cyber to offset, thus lowering his magic, thus taking more physical drain, thus needing more cyber to offset, thus taking more cyber...... and around it went.
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A higher grade would help with the essence loss.... but then it is a case of can you afford it? Can you find it? Can you get someone to install it?
and those are questions for your GM to answer. At my table Detaware is a soul selling endeavour. Other tables, it a walk down to the walk in clinic after stopping off at Kong-mart to pick up the cyber!