I've only been on EM once, and that was a crappie trip with a buddy. The Trinity on the North end looks like the most obvious place, but Indian Creek on the East side could also be good if it has enough flow?
Did try the river a few times caught a few very scattered but may of been to late was 3rd week of march last year. I seem to only catch them out on main lake humps and last year that was very hit and miss more miss. Even went with guide we only caught about 8.
Last year was my first year to fish the lake always heard it was great for whites. But I just cant connect. Found them schooling one trip in late may and caught 25. Can catch blue cat like crazy tho.