Alchemy and Sustained Spells, How do sustained spells work with Alchemy Options

[DamienKnight]

When using Alchemy to create a Lynchpin that casts a sustained spell, once the spell is cast, how is the spell sustained? Does the lynchpin itself sustain the spell? And if so, for how long?

I know they meant for systained spells to be used, since their example includes a sustained spell (shadow).

Edit (Nevermind, this was a simple question answered by Lobo).

[Lobo0705]

Page 306

If the spell is sustained, it lasts for (Potency) minutes (or in
the case of a permanent spell until it becomes permanent).
There is no Drain in this spellcasting because it
was already taken by the alchemist; likewise no Edge
pool can be spent on this spellcasting.

[Epicedion]

This makes me think there's a wealth of possibilities in Influence preparations.

[Shinobi Killfist]

Pretty solid for combat boosts like improved attribute and combat sense.

Simple action trigger improved attribute agility, quick draw shot with pistol in one pass for example.

[RHat]

Yeah - set up some good buff preparations in advance, activate them as needed.