Depending on the cigar,how easy it draws and how strong it is nicotene-wise will be my decideing factor on the cut.
Always a double bladed guilletine cutter.Easy drawing gars' get 1/4-1/3 of a cut.
Strong cigars with easy draw get same but I cut again at 1/3rd finish and again at last third for a full cut(no taper left).
The reason being is that strong gars' with high nicotine content tends to leave resin and tar build up at a small cut and to get decent flavor I cut after the build up is easily noticeable.

Punching a tapered gar's sounds silly imo.To punch on top like a flute is even sillier.