Deniz;
I am a little confused.

a 1:10 ratio for developer would be ; I.E. 3 oz of rodinal and 30 oz of water. correct? that is about a 1 quart liquid that is a little skippy for a volume. At least in my lab.

Using as a one shot developer means one print per quart. RIght?, or do you mean 1 printing session.

I have heard about this many times, just never got around to it, just as using dektol to developer film is another interesting reverse.