Logic Masters Deutschland e.V.

This is a follow-up to Aesthete, using some logic I tried to include in that one, but was impossible to fit in alongside a particular thing I really didn't want to leave out. (You might be able to guess which thing if you've solved that one!)
This one has absolutely nothing to do with a magnifying glass, nor does it look like any glyphs as far as I remember. There is no possible other title for a sequel to Aesthete though, is there?

If you like these puzzles with modifier cells, you might also like these:
The Digits Are Paid Actors
Schrödinger Whispers

I'd greatly appreciate if you also have a go at my other new puzzle and help it get a rating:
Renban shifted x-sums

Rules:
Normal sudoku rules apply.
Along thermometers, values strictly increase from the bulb end.
There are nine doubler cells in the grid, one in every row, column and box. Each digit from 1-9 appears in a doubler cell exactly once. A doubler cell's value counts as double its digit.

Solve here.