Like Tim said they stock right before the start of C/R and then again about halfway through. Bottom line there are plenty of fish and it is certaintly not as crowded. I would certaintly recommend it. If you can brave the cold you may have the entire stream to yourself on some days.
The parks open for C/R on Friday November 12th. Hours at Bennett, Montauk and RR are 8a-4p Friday, Saturday, Sunday, and Monday. Meramac Spring Park is the exception as that park is open every day of starting November 12th.