Its just ejecting out of the SW slower at the moment, If you speed that up a bit, It allows the northern stream s/w to drop down the backside and round the base of the trough of the s/w rather then a bit ahead of it just taking a piece with it and leaving some of it behind, Instead of scooping it up, It stretches it out like pulling on a rubber band which lowers the heights out ahead of it rather then raising them.