Variant Sudoku: More Classic than Variant for this One!

Today's Puzzle:

I had promised you all to revisit the consecutive sums lines after feature a Winding Path. I'm sorry it took a month! The wait was certainly worthwhile though with a phenomenal puzzle to wrap up our weekend of difficult puzzles.

Link to Play Along:

Variant Sudoku by PDN http://tinyurl.com/SudokuSleuthVariantSudoku

Rules:

Normal sudoku rules apply. Standard palindrome, little killer, and kropki (no negative constraint) rules apply.

To wit: Digits along the palindrome lines must read the same forward and backwards.

Numbers outside the grid indicate the sum of the digits on their indicated diagonal. Digits on these diagonals may repeat when otherwise allowed.

Neighboring digits marked with a white Kropki dot are consecutive. Neighboring digits marked with a black Kropki dot have a 2 to 1 ratio. Not all dots are given.