Paul
I rarely stab in carving but I do stab when I let in parts. Same process just different context. I have one chisel that is a standard palm chisel. 1/8th inch wide with the standard 20 to 22 degree bevel for straight line segments. The second chisel is the same model chisel, 1/8th inch palm, but the back, un-beveled side, is ground to a convex curve cross-section and polished to 1500 grit. This chisel allows me to cut curves of virtually any shape by making a line of stabs one after the other, overlapping slightly. When the back side of the chisel is ground to a rounded cross-section the edge becomes curved.
This is what I used when I stab in sections of carving where preferred.
This works for me. I hope this is of some help for you.
JMC