Not of the back but they pretty much look like this picher of the belly facets.
Then I round over all edges and sand smooth.
You can take the top in more towards the center on the boo, that really traps it, but don't get crazy.
Hitting weight with a bbo is tricky cause every piece of wood is a little different.
It's better to lean towards a little heavy to start cause ya got to remove wood while tillering.
After those facets are rasped in, I then round off those edges and sand smooth.
Here you can see the round belly, rough facets first then rounded over.
And the damn crack...