Thanks for all the information.  I went to Davis lake on the weekend of June 23rd.  I began fishing a 0730 quickly hooked and landed an 18 inch rainbow using my sly sink clear line with a ginger tail, olive back seal bugger, size 10.  within 15 minutes I hooked another one about 16 inches.  Went quiet for about 40 minutes so I changed to one of my tied blood midges, size 16 and immediately hooked and released 2 more about 16 inches.  The time was 11am and the  wind came up so I got out and came back to Watsonville, Calif with a smile.  Thank You for all your information.  Frank