Curtis,
I am no where near the caliber of craftsman that you are but I made a couple of chisels like that decades ago, some out of tool stock that I picked up at Dixon's, some made from either cut nails or saber-saw blades. And they are great for rolling along a curve. If I elect to stab-in part of the carving I generally start with a fairly narrow rounded profile chisel to make the initial line and then follow with a curved gouge with a rounded edge to smooth out the line. That's probably why your carving is better than mine.
Best Regards,
JMC