No it was a trim. That's why I suggested you experiment with trimming different sections of the main surface.
As you mention, I don't see a way to get G3 on both the sides and the top. Again, this is the limitation of the trim method in Creo. The only other thing I can think of is model the...
On the other hand, perhaps you don't have to throw the baby out with the bathwater. Depending on your requirements you may want to experiment with trimming away different parts of the main surface.
I see... it's likely because your primary chains 1 and 3 are not connected to the main surface with G3 continuity. You can perhaps visualize this better if you only build one half of the style surface. The curves must have G3 continuity defined at the top, and they clearly don't, having been...
That message is about your top curve chain 2. If you notice the connection along that edge is only G2. The reason is that your internal cross curve IS NOT, in fact, connected with G3 continuity. You have no continuity connection defined on that curve where you are using it to construct the...
