Part of the problem, maybe all of it, is that with hakf the fllod gates down and water coming over the other half the current is crazy. There are more seams then you can keep track of If you plan on going I would take some time and study the water, if you're fishing from the bank, from avove where you can see. That way you won't find yourself fighting some current you don't want.
I think boat fishing might be tougher, but if you can find eddy's there should be some fish in them.