I see so many threads with the over used term "lock". Any posters good enough to listen to?
This game is about finding solid plays not locks. I would suggest you find a square and fade them and they will give you an opportunity to win more than you lose. I am one of the biggest squares here, but usually don't post an opinion because it cost me to much therfore I don't have one and if I do I bet the opposite.
Learn game and line value as well as you can. When you see something that looks really good to you, bet the opposite. It works for me. I made a boat taking Stanford+6 today. I like Oregon, but the line was to cheap. I could go on and on, but I am pretty sure nobody cares what I think.