Oh I can't imagine trying this for my big blood. The cost of mice would kill me and then it would take hours to thaw and heat them. Then another day to feed all million mice to her.
I don't see this method as a rational choice for a large collection. Money and time invested in such a method would just be wasted in my eyes. I would much rather thaw one rodent for each snake, present one rodent to each snake, then go to sleep. I have had to feed multiples and I found it annoying.