Im having troubles with using my flash (430ex) in ambient light. When starting out with it last year, everything I read revolved around using the flash as a fill. So, for most of my portraits, I would meter the ambient light, then drop the flash exposure comp down. While that works to rid the photo of shadows (to some degree), Im thinking maybe thats not the approach I should be taking from some recent C&C and further research. To have these photos "pop", should I increase the flash output? In a studio setting were I have more control, I do better, but outside Im struggling.