Only once in thirty years have I gotten six chucks in one outing. One or two, maybe, and many times, none. "Help yourself; we're loaded with them!" is a common theme, but the little bastids don't show. Haven't been out in a couple years, but I'll have to make it a point this summer. My LGS owner and his wife go out about every other week, and get as few as six or as many as thirteen in an evening. Of course, they tell me they go north, but north covers a lot of country.
