A few have been asking about the various possibilities of being in the Dance Off, depending on their place on the leaderboard, when it's a 4 couple show, so here goes 
(I think I've covered all possibilities
)
Underlined entries = the dance off follows the original leaderboard
LB = Leaderboard, PV = Phone Vote
LB+PV=Final Score
Ties:
Leaderboard = Bold

(I think I've covered all possibilities
)Underlined entries = the dance off follows the original leaderboard
LB = Leaderboard, PV = Phone Vote
LB+PV=Final Score
Code:
4+1=5 3+2=5 2+3=5 1+4=5 LB 1st+2nd DO
3+1=4 2+2=4 1+3=4 4+4=8 LB 2nd+3rd DO
2+1=3 1+2=3 4+3=7 3+4=7 LB 3rd+4th DO
1+1=2 4+2=6 3+3=6 2+4=6 LB 1st+4th DO
4+1=5 3+2=5 1+3=4 2+4=6 LB 1st+4th DO
3+1=4 2+2=4 4+3=7 1+4=5 LB 2nd+3rd DO
2+1=3 1+2=3 3+3=6 4+4=8 LB 3rd+4th DO
1+1=2 4+2=6 2+3=5 3+4=7 LB 3rd+4th DO
4+1=5 2+2=4 3+3=6 1+4=5 LB 1st+3rd DO
3+1=4 1+2=3 2+3=5 4+4=8 LB 2nd+4th DO
2+1=3 4+2=6 1+3=4 3+4=7 LB 3rd+4th DO
1+1=2 3+2=5 4+3=7 2+4=6 LB 2nd+4th DO
4+1=5 2+2=4 1+3=4 3+4=7 LB 3rd+4th DO
3+1=4 1+2=3 4+3=7 2+4=6 LB 2nd+4th DO
2+1=4 4+2=3 3+3=6 1+4=5 LB 1st+3rd DO
1+1=2 3+2=5 2+3=5 4+4=8 LB 2nd+4th DO
4+1=5 1+2=3 2+3=5 3+4=7 LB 1st+4th DO
3+1=4 4+2=6 1+3=4 2+4=6 LB 2nd+4th DO
2+1=3 3+2=5 4+3=7 1+4=5 LB 2nd+3rd DO
1+1=2 2+2=4 3+3=6 4+4=8 LB 3rd+4th DO
4+1=5 1+2=3 3+3=6 2+4=6 LB 1st+4th DO
3+1=4 4+2=6 2+3=5 1+4=5 LB 2nd+3rd DO
2+1=3 3+2=5 1+3=4 4+4=8 LB 3rd+4th DO
1+1=2 2+2=4 4+3=7 3+4=7 LB 3rd+4th DO
Leaderboard = Bold
Code:
4 4 4 3
4+1=5 4+2=6 4+3=7 3+4=7 LB 2/3 tied 1st DO
4+1=5 4+2=6 4+4=8 3+3=6 LB 2/3 tied 1st DO
4+1=5 4+4=8 4+3=7 3+2=5 LB 1/3 tied 1st + 2nd DO
4+4=8 4+2=6 4+3=7 3+1=4 LB 1/3 tied 1st + 2nd DO
4 4 3 3
4+1=5 4+2=6 3+3=6 3+4=7 LB 2/2 tied 1st DO
4+4=8 4+3=7 3+2=5 3+1=4 LB 2/2 tied 2nd DO
4+3=7 4+2=6 3+4=7 3+1=4 LB 1/2 tied 1st + 1/2 tied 2nd DO
4+3=7 4+1=5 3+4=7 3+2=5 LB 1/2 tied 1st + 1/2 tied 2nd DO
4+4=8 4+1=5 3+3=6 3+2=5 LB 1/2 tied 1st + 1/2 tied 2nd DO
4+4=8 4+2=6 3+3=6 3+1=4 LB 1/2 tied 1st + 1/2 tied 2nd DO
4 3 3 3
4+1=5 3+2=5 3+3=6 3+4=7 LB 1st + 1/3 tied 2nd DO
4+2=6 3+3=6 3+4=7 3+1=4 LB 1st + 1/3 tied 2nd DO
4+3=7 3+4=7 3+1=4 3+2=5 LB 2/3 tied 2nd DO
4+4=8 3+1=4 3+2=5 3+3=6 LB 2/3 tied 2nd DO
4 4 3 2
4+1=5 4+2=6 3+3=6 2+4=6 LB 2/2 tied 1st DO
4+1=5 4+2=6 3+4=7 2+3=5 LB 1/2 tied 1st + 3rd DO
4+1=5 4+3=7 3+4=7 2+2=4 LB 1/2 tied 1st + 3rd DO
4+1=5 4+3=7 3+2=5 2+4=6 LB 1/2 tied 1st + 2nd DO
4+1=5 4+4=8 3+2=5 2+3=5 LB 1/2 tied 1st + 2nd DO
4+1=5 4+4=8 3+3=6 2+2=4 LB 1/2 tied 1st + 3rd DO
4+2=6 4+3=7 3+1=4 2+4=6 LB 1/2 tied 1st + 2nd DO
4+2=6 4+3=7 3+4=7 2+1=3 LB 1/2 tied 1st + 3rd DO
4+2=6 4+4=8 3+3=6 2+1=3 LB 1/2 tied 1st + 3rd DO
4+2=6 4+4=8 3+1=4 2+3=5 LB 2nd + 3rd DO
4+3=7 4+4=8 3+1=4 2+2=4 LB 2nd + 3rd DO
4+3=7 4+4=8 3+2=5 2+1=3 LB 2nd + 3rd DO
4 3 3 2
4+1=5 3+2=5 3+3=6 2+4=6 LB 1st + 1/2 tied 2nd DO
4+1=5 3+3=6 3+4=7 2+2=4 LB 1st + 3rd DO
4+1=5 3+4=7 3+2=5 2+3=5 LB 1st + 1/2 tied 2nd DO
4+2=6 3+1=4 3+3=6 2+4=6 LB 1st + 1/2 tied 2nd DO
4+2=6 3+3=6 3+4=7 2+1=3 LB 1st + 3rd DO
4+2=6 3+1=4 3+4=7 2+3=5 LB 1/2 tied 2nd + 3rd DO
4+3=7 3+1=4 3+2=5 2+4=6 LB 2/2 tied 2nd DO
4+3=7 3+4=7 3+2=5 2+1=3 LB 1/2 tied 2nd + 3rd DO
4+3=7 3+1=4 3+4=7 2+2=4 LB 1/2 tied 2nd + 3rd DO
4+4=8 3+1=4 3+2=5 2+3=5 LB 2/2 tied 2nd DO
4+4=8 3+2=5 3+3=6 2+1=3 LB 1/2 tied 2nd + 3rd DO
4+4=8 3+1=4 3+3=6 2+2=4 LB 1/2 tied 2nd + 3rd DO
4 3 2 2
4+1=5 3+2=5 2+3=5 2+4=6 LB 1st + 2nd DO
4+2=6 3+1=4 2+3=5 2+4=6 LB 2nd + 1/2 tied 3rd DO
4+3=7 3+4=7 2+1=3 2+2=4 LB 2/2 tied 3rd DO
4+4=8 3+3=6 2+1=3 2+2=4 LB 2/2 tied 3rd DO
4+1=5 3+3=6 2+2=4 2+4=6 LB 1st + 1/2 tied 3rd DO
4+3=7 3+1=4 2+2=4 2+4=6 LB 2nd + 1/2 tied 3rd DO
4+2=6 3+4=7 2+1=3 2+3=5 LB 2/2 tied 3rd DO
4+4=8 3+2=5 2+1=3 2+3=5 LB 2nd + 1/2 tied 3rd DO
4+1=5 3+4=7 2+2=4 2+3=5 LB 1st + 1/2 tied 3rd DO
4+4=8 3+1=4 2+2=4 2+3=5 LB 2nd + 1/2 tied 3rd DO
4+2=6 3+3=7 2+1=3 2+4=6 LB 1st + 1/2 tied 3rd DO
4+3=7 3+2=5 2+1=3 2+4=6 LB 2nd + 1/2 tied 3rd DO
Is that knowledgeable enough