I've never seen a oxbow that didn't at least have some crappie in it and usually pretty good ones when you get em figured out. My first thought was you were pretty busy with all that and the wind. Depending on what the big river does you may of just found yourself a real honey hole. That electric only really will deter a lot of folks so I would figure traffic would be at a minimum even if it does get busy. While you are scouting it's a good time to learn your electronics. You will be surprised at what they will tell you once you learn how to interpret what you see. Spending time there this fall will sure have you more prepared come spring time. Good fishing to you. If you get into them shoot some pictures.
Proud Member of Team Geezer
Charlie Weaver USN/ENC 1965-1979