You'll get faster. I have only had dual purpose layers until this spring. It took me almost 2 hours to do one bird the first time I did it. I did my 4th bird, first CornishX last night, and it took me about a half hour from start to finish. I do it all myself. I think it wouldn't take me much longer to do several birds at once if I had a good set up. As it is, I put a nail in a tree, tied the legs together, slit the throat, and hung the legs on the nail to bleed out. Then I took it in the house to finish up everything else (I had a large pot with me to put the bird in so it didn't bleed everywhere during transfer.) I wouldn't want to do more than maybe 3 at a time in the house, though. I think it would get too messy with more than 3. I had a very easy cleanup doing just one. Just a few stray feathers and lots of blood on my sink. And I had to hose of the tree and the ground right there to get rid of the blood.