Have you tried Schoppel Wolle Gradient yet? It's the heavier weight cousin of the Zauberball, and just as moreish!
This is the recommended yarn for Martina Behm's Wood Warbler cowl from A Year of Techniques, which requires 1 x 100g ball in each of 2 shades.
The colour repeat is longer than the length of yarn contained in each ball. This means that each ball may not contain all of the colours illustrated.
The Wood Warbler cowl shown on the cover of A Year of Techniques is in Shadows / Schatten and Yellow Filter / Gelbfilter. Use the dropdown menu to see the range of colours available.
Content: 100% virgin wool
Recommended needle size: 3.5mm - 4.5mm [US 4 - 7]
Tension/gauge: 19 sts and 25 rows to 10cm [4in] over stocking stitch
Number of metres per skein: 260 metres [284 yards] per 100g ball
Washing instructions: Hand wash only