Here's some interesting reading by the experts, those that have studied the very complex digestive processes of multiple species of snakes (burmese python, ball python, garter snakes to name a few).

http://www.nytimes.com/2005/03/08/sc...=1&oref=slogin

http://jeb.biologists.org/cgi/content/full/208/5/881

http://www.csulb.edu/~brourke/CMP_Research.htm

Their results seem to indicate that there is a sharp increase in blood volume, liver size, heart size (in particular the ventricle), lipid production, mucus lining of the intestines, etc.

For me that confirms what I was always taught. That the digestive process for snakes is so energy intensive, so complex and involving so many organ systems that it's just not a good idea to feed every few days or to feed what I'd call "non productive prey" - aka mouse pinks that are far too small to be worth the energy a ball python would use to consume them.

This "truth" is backed by recognized scientific study and it does say to me that giving a snake a reasonable time to digest and allow it's systems to return to a relaxed, non-digestive state for a time is a good thing for the snake and how nature designed them. I don't think that offering meals every couple of days allows for that down time.