Whites are by far easier to catch than Reds. Has to do with the freshet. Nicola Springs are easier than Thompsons; remember both are C & R exept for that small slot by the Bridge in early August. I usually target the Whites in the Fraser tribs, Oct through Nov, with a single hand 9wt (I have a spey but don't like it). I like to sight fish (I hate fishing blind) so I spend allot of time stalking.
Here's the tricks
Get away from the crouds
Keep the noise to an absolute minimum
Work on accuracy not distance
When you spot a fish, work from behind a stump or bush or at least from behind the fish. (after I spot a fish where possible I creep up to a waist to chest high bush or shrub within casting distance and try to keep my arms as low as possible).
Think like a Heron, be observent,and move only when necessary.
I learned a long time ago that on over cast days and when not spooked, Springs stay closes to shore. I have had them swim by me in water as shallow as three feet and gin clear.