I don't know where you hail from, but if you are in the Galveston Bay area, this is a bad year to ask that question IMO. The fishing has been really good this year, so the two and a half hour drive to Big Lake is not as worthwhile a gamble as it is in some years. I grew up fishing Big Lake and I will tell you that Calcasieu is a little more susceptible to muddying up than GB. So you need to pick your day where the wind is concerned. Just like any fishing, tide is the other factor. It's not like it's a sure thing every trip. But having said all that, when it's on, it's on big time. Limits are way more liberal, both in size and numbers allowed. Fish are plentiful. Lot's of bait because of great marsh estuaries. Spring fishing is very good when the wind isn't blowing. Summer can be tough fishing at times. Live sometimes bait helps in the summer. Fall and winter are exceptional. I also recommend getting a guide, but if that's not in the budget, fish the birds in December. Start in Turner's Bay on the north end of the lake and work from flock to flock as you head further south. If the tide is moving there will be no shortage of school fish, so you don't need to crowd anyone. Flounder fishing along the ship channel can be nothing short of awesome during the run.