Augmentation / Chrome Flesh Questions Options

[branford]

What's the functional difference between Symbiots (SR5, p. 459-460) and Nanosymbiots (CF, p. 148), and under what scenario would it actually be more advantageous to attempt to acquire the latter.

The Nanosymbiots appear far more illegal, unavailable, expensive, have a lower max Rating, and depending on how one interprets the descriptions, do not provide any bonus to healing while under professional medical care.


Symbiots: [Add Rating as dice pool modifier to healing tests (physical and stun)]

Rating: 1-4
Essence: Rating x 0.2
Availability: Rating x 5
Cost Rating x 3500¥
+ Upkeep Rating x 200¥ /month or 0¥ with High Lifestyle

Note: Upkeep cost can be eliminated with Complimentary Genetics: Enhanced Symbiosis [Essence 0.1 / Availability 6 / Cost 4,000¥]


Nanosymbiots: [Add Rating as dice pool modifier to healing tests through natural recovery]

Rating: 1-3
Essence: 0
Availability: 8F
Cost: Rating x 6000¥

+Must Have Soft Nanohive at equal Rating as nanites

Rating: 1-6
Essence: Rating x 0.2
Availability: (Rating x 5) R
Cost: Rating x 10,000¥


Also, would bonuses from Symbiotes and Nanosymbiotes stack?

Similarly, would the healing and resistance test bonuses also stack with the relevant nanotech (Anti-Tox, Nanidotes) and bioware such as Amplified Immune System, Nephritic Screen, Pathogenic Defense, Toxin Filter, Tracheal Filter, etc.?