After a good 6-7 months of searching (less final exam times), and visiting upwards of 25 banks per day on "good" days, (and not every day of course), here is what the scoop seems to be in Edmonton:
Places where I could pick up 100 old $10s: now have about 8
Places where I could pickup about 10 old $10s: now have about 1 or zero.
They look rougher and rougher and rougher each day that passes.
I manage to sift through about 100 to 250 per trip that I go on (and that means turning alot of money lol), but thenumbers have been dissapointing. Virtually none of the lost prefixes. None. Edmonton was the bed for BER 2003, and the few of those that ever got out, well, I think the days of hoping to ever find one are history. I guess it is a similar story for the other Lost prefixes, although to a lesser extent. Every time I flip over a $10 I still have hope in what I might find.
But realisticly, they are pretty much gone
(In Edmonton anyway)
Still check your change though.... similar experience: I found 3 1991 25c coins, latest one at a gas station in 1998. There
is a chance!