Wow what an amazing report! Timely as well since I'm headed to your neck of the woods later this week hoping for some of the same.
What I find interesting, you described catching them all over the lake.
Obviously they're not congragating over the upwelling springs yet? (At least in that lake)
Normally this time of year I catch all the fish in one very localized spot close to where they'll spawn.
I can only assume the water temps must still be too high?
Based on the spoon/worm you were using did you mostly troll for them?
That is a deadly, time honoured technique for sure. (Looked like a gold Doctor spoon you were using?)
In any case congrat's dude, and thanks for whetting my appetite.