Logic Masters Deutschland e.V.

I'm curious how other people name their puzzles. To me, these lines look enough like sticks, and "fiddlestick" is an intriguing enough word to make it a fine title. But the lines don't look like actual fiddlesticks! Does this matter? Will I be judged for my sins? Anyways this is probably 1-1.5 stars for difficulty enjoy.

Rules:

Normal sudoku rules apply.

Whisper-5 lines: Adjacent digits on a thin green line must differ by at least 5.

Region sum lines: Box borders divide thick blue lines into segments with the same sum. The sum may be different for different lines.

XV: Digits separated by an X must sum to 10. Digits separated by a V must sum to 5. Not all X's and V's are necessarily given.