Comment 5 for bug 1295731

There are various timing's being compared here,
   Roberts expectations
   stephens obsevations
   timings from a single CI run (built in a VM)
   and a timing with wheels

I can't see anyway to compare all of these, so marking as incomplete, Obviously I'd love to speed things up but
If we can't identify exactly what part of the image build process needs to be improved I'd like to close this