I do the SkeeFabs Combo
I dress them anus to snout -- start at belly, be careful like Skeeter posted about not cutting intestines, stomach, etc, down to pelvic, gently pull & lay intestines to side, to make room to split pelvic in the center, you can feel the bump right in the middle, this is where to split it. On older animals sometimes easier to use the saw blade here, but make sure you have the bladder out of the way whichever you use.
Cut thru center of rib cage cartiledge all the way to snout, expose windpipe and cut, which is now a nice handle to pull on, a little cutting required, but once you get to diaphram and cut that, you can pull the entire mass all the way down to anus, cut out, done deal. Takes less time to do than type, well ok, maybe not the first couple times, but it is a fast, clean process, Waidmannsheil, Dom.