I decided to take a break from everything associated with Henry. Different yarn, thicker ply, bigger needles, and a new pattern.
Such a relief. The pattern is 'Steam' - a free pattern from Diana Gates. It's an absolutely unadorned 2x2 rib with three biggish cables. The colour's much the same - a deep brick red - but this time the yarn is Morris and Sons' Empire 8 ply 100% wool (bought at their current sale - it hasn't even had time to enter my yarn collection).
It's a project I can relax with.