I am new also but I believe when you are reading about temp it is temp at the ball (down temp) for that you will need a fish hawk or similar. As far as a fish finder I love my hummingbird helix 7 works great and thought for the money it had all the bells and whistles. Another thing I have been reading here and talking with guys about is temps are pretty much out the window for the remainder of the season with the fish staging. I'd fish the marks you find. All that said I am also new this year on lady O.... Sent from my SM-N920V using Tapatalk