hi koolig, congratulations on abolishing your back pain and for also losing weight. you mention being overweight but not by how much. it is possible that the fascia as well as the abdominal muscles have been stretched due to this and now may not actually reduce right down (muscles may but not fascia) all i can suggest is keep up the exerices for your core and TA, add in some oblique work and see what happens. depending on the degree of tilt, correcting it can also help. you may have strong TA with testing in certain activities but you need to also activate it in more functional positions such as sitting and standing. hope this helps, there may be others with ideas.