Have just finished knitting the Vignettecardigan by Amy Herzog. A great pattern which looks great.
I used wool from a 1980s jumper that DH was never going to wear again. I couldn't work out if it was 4 or 5 ply using WPI but determined from gauge swatches that using 3.5mm needles that I need to knit a size J 50.75 to achieve a size D 36.5 Knitted additional rows from those stated in pattern to obtain required length.
Further details if needed can be found on my Ravelry page. Made good use of lifelines as can be seen in the last photos. Also use the light colour thread to highlight pattern repeats and where increases/decreases are so that I can match front and back pieces.