When To Glue Back / Cap / Top

[Mickguard]

When do you glue on your top (or back or cap) when you're chambering your guitar?

I plan to draw the outline of the guitar onto the body blank, then route the chambers and only then cut out the body shape.

Now I can either glue on the maple back I'll be using before cutting out the body shape

or

Affix the cap firmly with double-sided tape and route out the body shape like that.

I figure this way if there's any more monkeying around to do inside, I'll be able to.

But what's the usual (correct) method for this?

[Daniel Sorbera]

I'm not sure if it's the "right" way but on my first guitar I cut out the mahognay body, routed the chambers, than glued on the top and used the body as the template and routed the top to the size of the body.