I think everyone has done a good job covering all the information and thoughts I would so I won't repeat them. Fwiw, one thing I will say is my son was also stuck in the 28/30 at one point b/c of his summary, retell etc. I had a great teacher who explained to me how fully understanding this "hurdle" is so crucial for future reading comprehension etc. While your first thought might be to find another test, I will say 4 years later this teacher was right. Struggling through this part of the DRA has helped him tremendously school wide (and has upped his reading level and class placement along the way), and also positively showed up on standardized tests both in school as well as things like the SCAT, ISEE etc.