I did a search, but I hope I did not miss an older thread on the topic.
I wanted to know what fellow SPs did to monitor opportunities to snipe trash and adds in the heat of battle. 20% window can come and go when you are juggling other actions. And its CD can be untimely. In my mind, I can think of cool modifications that would alert me to it. Since I played a healing priest most of my WoW career, I keep a raid frame up like VuhDo. I open up the target frames and bind hostile actions like SW:Death hoping to catch a chance.
Along the same line, does anyone ever glyph Glyph of Shadow Word: Death? I can't see this appealing to any situation as it will strain healing.