Essence Loss and Recovery Options

[Faenor]

Hey all. I was curious if there were any rules about raising your essence after having cyberware removed? I recall reading somewhere about how you never gain that back. But, since drug addiction causes essence loss alon with major trauma (deadly wounds, etc), it'd make sense that you can get that back up with physical therapy and counselling. I had a thought of buying the attribute back up just like a regular attribute with a TOTAL CAP of 6, and having the time to raise it be one week per point of karma spent, and a cost of 500 nuyen per karma point. So, to raise a karma from 0 (a reformed street samurai) to one would be two karma, two weeks in game time, and a thousand bucks.

Does anyone else have any other ideas for this? I'd also say that for magicians they would need to initiate/ take a geasa to gain back the magic point, or does that seem too harsh? Or just double the costs to re-attune to their magic rating as well, but make them initiate if it takes them over 6?

What are everyone's opinions on this? Any alternate mechanical rules or ideas? I'm more than welcome to them.