That sweep is a "smoother." I'd do the rough work with more of a sweep, like a #7 or a #9. 9/15 is my go to rough out after adze work.
Your new gouge would kiss off all the ridges from the deeper sweeps. Looks like real fun to push.
I'd like to have something like that, bashed out of the end of a 7/32" chainsaw file. Lots of wrecked files in my shop!
Back in my spoon days, the 9/15 did most of the bowls then a cute little 5/7 fish-tail did the ridge-cutting.
Finish with a PacNW crooked knife. Spoke shaves for the spoon handles. Wood was very well dried birch.
Of course, I was doing a dozen at a time, as fast as I could go, to try to make something to sell.