It is only about 2 to 3 weeks off from the prime jigging time on the Detroit River and Lake Erie for walleye. The early part of the season is when the biggest fish are caught. The big fish are always "hen fish" heavy with eggs. If a person was able to jig the river for 5 days there is a very good chance of a 10lb+ walleye. These big fish are not very good eating and I always put back any walleye over 20" long. The best "legal eaters" are the 15" to 18" "jacks". In the old days the 13" to 15" were called "number ones". They are soooo sweet it is beyond belief. The last week of April through the 2nd week in May, depending on water temps, sees a "turn on" post spawn feeding binge of these "jacks". It is more than possible to put a limit of fish in the boat in a hour or less during this time. My favorite time.