I have 2010 ETEC. Yes the oil is pricey, but I use a lot lot les, comes out about equal. I have had no problems and the performance is awesome. If I had to get another motor it would be the etec, hands down.
I agree with big daddy. A phone call will get you all the answers to your questions. I talked to these folks today and my rod is ordered. I have never received better customer service anywhere.
i have never been on Big Lake. If you like to explore, have you tried Eagles Nest? Challenging lake. Hard to pattern, but quality fish when you find them.