With two managed voices?

Does anyone have a method for hiding the stems of tremolo whole notes when a linked part pulls using managed voices? It's correct in the score, and stems appear in the parts due to the managed...

I hope a new third player can bring fresh innovation and encourage a new round of competition between the platforms.

John, you're correct—centered under the bar line is optimal. This, if you notice is even in Sibelius. I just grabbed a quick sample to show the context of the symbol.

I engrave for a big US publisher and we don't have a standard for the term.