What situations?

[tynan19]

That is a good point. I quess I need to know what types of presentation. For the outlets is it a drift and mend or cast to certain areas? Rocky ledges, sinking lines or a fly with a splitshot? Do you want the fly deep or just in the wash? Or do you try different techniques untill the fish tell you what they want?

[WoodyCT]

...what's the use? Really. It's my single most productive color. Chartreuse and white, olive and white, blue and white, and all white are about all you need for bass and blues. At night go with all black, purple or olive. Cruise the fly bins at the shops and you will get some ideas. Fancier is not always better. Strive for a well balanced fly that rides upright without spinning or swimming on its side. Have fun with your new addiction!