Old Wives Tale with regards to flashers and spooking the fish in clear water.
THIS DOES NOT APPLY TO WINTER SPRINGS!!!
Talk to any old salt commercial troller and flash it up!
As for mature fish, that is a TOTALLY different matter.
Having been a guide at Langara Island for 4 seasons, and being a part time guide for one of the local charter operators down here, I can tell you that the more successful operators fish FLASHERS. In addition, having fished on board a commercial boat for a few days in April and September off Langara Island, I can tell you a few things...
David Korsh of Predator Charters advocates not fishing with flashers as they really aren't necessary, but they do increase results, and add a lot more sport to small fish. I do tend to agree with him, but fishing with flashers adds to the all important attraction factor.
At any rate, Spudcote, if you are looking to get some better results at this time of year, fish closer to the QB in a line diagonal from the QB to Point Grey, or on a course towards the North Tower of the Lions Gate Bridge. Don't spend too much time in any water shallower than 90 feet as you are going to waste a lot of time weeding through grilse.
Your other option for decent sized Winter Springs in English Bay is closer to Spanish Banks EAST to SPANISH BANKS WEST in AT LEAST 120 feet of water.
With regards to my last message to you, fish with 4.0 Coyotes and nothing smaller as you are truly going to be busy with "shakers" under 24 inches. Coming up here in the next few weeks, it will definitely help you keep your rods fishing for larger fish.
I don't know if you fish 4 rods or not, but put it down 115 and 95 and then maybe fish your other rods 80 and 60 feet to see if you can determine what depths they are at.
Spudcote, I don't know if you launch down at Vanier or not all the time, but I do, and I fish with a 18.5 foot Campion with a 150 on the back, and I usually fish with 4 to 6 rods...give it another 3 weeks and then get out and load it for bear, and don't be afraid to sleep on in, as getting up "early" except to fish the tides at this time of year is BS....Even if you miss the tide, fish it correctly, and there are going to be plenty of feeders in the next few weeks...
Just an FYI, last April 15 we were fishing off Cowan's with 3 people on board and we limited on springs. 2 were mature fish returning up the Fraser I think, 22 and 24 pounds respectively, 1 white, 1 red, and the others weighed 13, 10, 11, 9 lbs. All came with flashers and fishing chovies, and spoons. Spoons were 5 inch Coyotes and 4 inch Coyotes.
There are fish there, just got to put your time in, and like I say, if you hit it just right and fish hard
you may just be rewarded like I was. Local charter operators fishing in English Bay don't tell the whole story as they are restricted in their efforts by the price of fuel and lack mobility.
However, I have had my fair share of days out there with results like yours, but what you experienced is pretty average for most anglers at this time of year.
I can't wait to get going in the next few weeks...