I am just an ordinary, run of the mill person. To study the DSS takes what is way above what I am capable of. What I have done about this situation is to search until I found a person who is capable, who retired early and devoted eight years to study. He has written an explanation of some OT scripture books, verse by verse using this information. I have checked him out, and am assured that any time he uses his own ideas not just reporting he will clearly say so. I use this man's brain to show me what I'm not capable of doing or have the time and money to do. Each chapter takes from 7 to 12 packed pages and some people who have tried to study them say it is over their head. And you want me to put it in a post!!!!!
As I have found, there has been changes in OT scripture that finding older translations brought to light. These changes in scripture are clearly explained in footnotes when they are used. When I studied ancient Hebrew history I always checked the authors to be sure they were using the history found in the DSS.