How big are the (50) walleye that you are going to stock?
If they are fingerlings or even very small juvies, I would go for it now.
On a side note, hitting a spring, many times, is not that great news.
Excerpt from Robert Crais' "The Monkey's Raincoat:" "She took another microscopic bite of her sandwich, then pushed it away. Maybe she absorbed nutrients from her surroundings."