I was there yesterday and the White are agressive as hell!
I mainly fish Pike out there, but I seen so many whites coming by on the camera I thought I'd throw a wire-worm down there... I had two nice ones in a matter of 10 mins. When I was watching them on the camera, they were even taking stabs at my red devil setup for pike... which is unusual.
I was just using a wire worm with a yellow bead tipped with two maggots. As soon as I dropped it down, when one came around, it would hit it. I lost a really nice right at the whole because I had my head up my arse, I would have guessed it was 3-4lb.
Also, I was fishing in 6' of water near the Wabamun Marina.
Hope this helps.
here is a pic of one from yesterday. This seems to be the average size.