I've been powerlifting for about four weeks now. I have an extensive weightlifting history but 99% of it was old dogmatic Flex magazine "wisdom". Needless to say, I had very little results. Anyway, I've been doing some max effort deadlifts. When I get to my maximum I notice that my back really wants to round (about early-mid lift). Should I work more exclusively on good mornings and reverse hypers until the spinal erectors are stronger? Or should I continue with deadlifting. I'm afraid of overtraining if I do too many movements. I do some reverse hypers and good mornings more as a supplemental exercise.