With all the Maryland maps, I guess I will throw my two cents in the game. The assumption of this map is a 7-0-1 map as a 8-0 map is incredibly difficult to do while maintaining reasonable seats for the Democratic incumbents and having 2 VRA seats. In addition, it would require splitting the East Shore, which could be too controversial. So I settled on 7 strong Dem seats and one swing seat.
So here were go:
MD-01 Blue: Old 40-58 Obama New 52.3-46.2 Obama 53.1-46.9 Dem Average
The main issue with creating an 8-0 map would be splitting the East Shore, which I do not believe would be politically possible. Instead I created a tossup seat by changing where the district goes across the bay, switching conservative portions of Ann Arundel county for Democratic D.C. Suburbs in Prince Georges county. By almost reaching to D.C. this district becomes one which a Democrat like Kratovil or Sen. Mathias can win.
MD-02 Green: Old 60-38 Obama New 58.3-39.8 Obama 62.4-37.6 Dem Average
By cleaning up this district, Dutch loses a few points but it still should be Safe Dem.
MD-03 Purple: Old 59-39 Obama New 58.9-38.8 Obama 63-37 Dem Average
Same situation. Sarbanes is fine.
MD-04 Red: Old 85-14 Obama New 75.5-23.4 Obama 74-26 Dem Average 50.1 AA VAP
Edwards has expressed that should would be willing to give up some of her Democratic areas to help out other districts, and at 50.1 AA voting age population, this is the limit of doing so while being VRA compliant.
MD-05 Yellow: Old 65-33 Obama New 62.1-36.7 Obama 64.2-35.8 Dem Average
Hoyer's district does not change that much and remains at Safe D.
MD-06 Teal: Old 40-58 Obama New 60.1-38.3 Obama 60.9-39.1 Dem Average
This is a much more easier task than MD-01 as it just needs to head into the Democratic D.C. suburbs of Montgomery county. A Frederick or Mont Co Dem should win and hold this district with ease.
MD-07 Chartreuse: Old 79-20 Obama New 65.3-33.1 Obama 63.5-36.5 Dem Average 50.1 AA VAP
This district might be tougher sell for Cummings as he might not be as willing to give up some of his Dems as Edwards is. However, this district soaks up the remaining GOP areas in Northern MD while remaining barely VRA compliant. I do not know where he lives in Baltimore, but the map could easily shift accordingly. Nevertheless, it is Safe Dem.
MD-08 Slate Blue: Old 74-25 Obama New 62.1-36.4 Obama 62.2-37.8 Dem Average
Van Hollen has to take up some of the GOP areas in the north to aid MD-06, but it still is Safe D.
Overall, this map can produce an 8-0 delegation, but without the potential mess of splitting the East Shore.