Reworking a "vintage" design can be tricky....
This applies to knitting perfectly! It all comes down to the details...like getting GAUGE! Without exact gauge....you have NO CHANCE in adapting a design from one yarn to another. First - Can I get gauge with the Fine Art Aran Yarn? The original Zen was knit with Rowan Handknit DK Cotton - and I want to substitute Aran? Hmmmm....let's see.... Gauge called for is 20 sts and 28 rows to 10 cm! Recommended Gauge for Fine Art Aran is 19 sts and 25 rows to 10 cm! (Because of my experience knitting my Fine Art Aran Swatch cowls, I knew that on 4.5 mm needles I was getting the recommended gauge for this yarn. But, my "swatch cowl" was nice and drapey....I wanted to make this sweater at a firmer gauge so that it would hold it's shape! So for my "Zen" swatch, I went down to a 4 mm needle and got 20 sts and 26 rows to 10 cm! This was as close as I could get - I loved the fabric this created....and I didn't want it to be any firmer... ...