Why are my tempered chocolate shells cracking?

Tempering silk butter is the bomb.

This is going to be a little rambling with a little of this and a little of that. I’ll get to the Ask the Alchemist after a couple announcements.

Hello! I'm wondering your thoughts on COVID-19 and chocolate tempering preparation. From what I can read, 140 degrees is the safest temperature for food prep to kill viruses, but we don't want that for melting chocolate. any thoughts on food safety?

I use my Sous Vide for so many things and am planning on making silk. My question is however have you tempered chocolate using a sous vide

It is about aging or blocking the chocolate right after the melanger/conching.
I have always blocked them untempered for about 2 weeks before melting them for use. But I heard some professional chefs said they age them in tempered form.
Questions:

How can I make chocolate with honey? -- 'The Updated Answer'

So why am I going to answer it again?  It boils down to the scientific method.  Science, good science, by its nature changes and evolves as we learn new things.  It does not necessarily  invalidate previous findings completely.  It refines it and fine tunes it.  To that end, I have somewhat a new answer to this question in that it appears (note the disclaimer for future updates of failure) that I have successfully tempered chocolate with honey in it.

We've noticed that different beans seems to have different amounts of intrinsic oil. The Peruvian Maranon seems to have quite a bit of oil and produces a chocolate that flows very easily but it tricky to temper correctly. Is there a way to know in advance the amount of oil in a bean so we can adjust the amount of cocoa butter we add?

In one of your articles you mentioned you like silk tempering more than chocolate seed tempering because of the strength of type V crystals in tempered cocoa butter. Can a chocolate tempered with chocolate seed have a chance of blooming because of the seed? I'm not sure if my last question made any sense but all I'm trying to understand is why chocolate seed crystals are not as good as silk seed crystals?   

I am really sorry but I keep reading all the different ways I can temper and I am so confused.  I don’t know which way to pick.  It does not make sense that they can all work.  How should I temper my chocolate and do I have to do it right out of the melanger?  Will it be ruined if I don’t?

I use a Chocovision Delta to temper chocolate and have two questions:

(1) In using the seeding method (with tempered chocolate from the bag or from a bar of the same chocolate), I learned that it doesn't take very much seed for the chocolate to test as in temper--not the 30% or so that many (most?) people recommend.