[theboz]

Do you know this body of water ? If you do what's going on there at the tome of year you are going ? Is it more of a nymph type situation or is ther some good streamer water?
If I know I'm going to a place that I did real well last time I went with a Copper John I'm going to have a dozen and a two or three of other nymphs.
If it's my first time and I'm blind fishing with no information I may have more of each pattern as well as streamers etc. Also no knowledge more variety. Also things that have worked consistently in similar waters I'm going to have s bigger selection . Bottom-line everything is based on what I know about this place at this time of year and this determines what and how much.