with the water this low i dont know if a 4-6 inch lure would be the best.. id maybe down size to say some jensen eggs, with a small wool tie, even single jensens may produce.. small gooey bobs.. little roe sacks say 3-4 eggs in there should do.. some spin n glo's in the semi faster water with a little bead.. some jigs too.. little spinners, may work... just experiment.. do remember the cap and seymour are hard rivers to fish even for salmon.. not to mention steelhead.. but just get out learn the river and find spots that you eventually will return to during salmon season.. since you are in the north shore and if you have a car and dont mind driving 100 clicks one way to the vedder (chilliwack) thats your best bet to catch some steel if thats what your dying to do.. if ur more out for the trip and a fish is just a bonus, then the local rivers will do..
here are some tips you may find useful for these conditions..
http://www.piscatorialpursuits.com/resourcecenter/spinners.htm
http://www.bentrods.ca/low-water-steelhead.html
Anyways good luck out there and show some pics :wink: ...
Also remember to look at the regs.. if you get lucky in the cap every kind of steel is catch and release. (hatch or wild)
tight lines