Now insofar as back bleeding vs. top down bleeding goes…I understand that since bubbles rise, only doing a top down bleed leaves open the possibility of leaving some bubbles in the vertical brake line. But since the bleed valve on the caliper is an inch or more above where the banjo bolt brake fluid lines comes in (on my bike anyway) you would have to do at least some top down bleeding to make sure all the bubbles escape from the caliper out the higher positioned bleed valve. Together these two ideas imply that it might be best to do both some top down and bottom up bleeding. Any thoughts?
Anybody have a somewhat educated idea of how quickly air bubbles rise in the vertical line between the caliper banjo bolt and the handle? If they rise slowly enough seems like it would be possible to bleed the whole thing by doing only a top down.