For those who venture into weaving with two heddles, Kromski offers a choice of heddle blocks.

Leave the original block in place and add a Second Heddle Block Set for an occasional double heddle project. Or choose the Double Heddle Blocks to replace the single set with a block that will always be ready to accept the second heddle. Either way, your sure to have twice the fun with double weaving!

See our tutorial here http://kromskina.com/double-heddle-poncho/