I can say one thing here that always applies, all respect given since I don't know the experience of those who posted. If the forecast you read, whichever one, is at that 50% point as to whether you will go or not, then go. If it errors on the bad side, then learn from it. Go out, find lee if necessary, fish there. Point - you have to go on these 'mistake' days to get the knowledge and experience you need to understand the Lake better. That gives you the experience to make a more knowledgeable decision next time.