I created some images to test (8360, 8361, 8362 is mastering error sector).
Pattern 1 [8360:descramble, 8361:descramble, 8362:descramble]
Pattern 2 [8360:descramble, 8361:No descramble, 8362:No descramble]
Pattern 3 [8360:No descramble, 8361:descramble, 8362:No descramble]
Pattern 4 [8360:No descramble, 8361:No descramble, 8362:descramble]
Pattern 5 [8360:No descramble, 8361:descramble, 8362:descramble]
Pattern 6 [8360:descramble, 8361:No descramble, 8362:descramble]
Pattern 7 [8360:descramble, 8361:descramble, 8362:No descramble]
Pattern 8 [8360:No descramble, 8361:No descramble, 8362:No descramble]
Writing drive: PX-W4824A
Writing tool: Disc Mediator Kureha version 0.9.2 beta
Writing command: DAO RAW+96
Reading tool: DIC test version 20170518
Result:
Pattern 1 => 8360 is same, 8361 is different, 8362 is different
Pattern 2 => all matched
Pattern 3 => all matched
Pattern 4 => all matched
Pattern 5 => all matched
Pattern 6 => all matched
Pattern 7 => all matched
Pattern 8 => all matched
Conclusion:
I understood that it was incorrect to descramble all mastering error sectors. On the other hand, I felt that it wasn't necessary to descramble all mastering error sectors.