If you use a pinned mandrel of a circumference large enough to allow space for the interweave between the parts of the foundation (or posses an amazing degree of manual dexterity otherwise) you can use a technique of counting the code of the two pass structure into the foundation knot with the running end of the interweave that makes the parallel paths and splitting of pairs automatic. The example here is a 7-part 5-bight knot but this technique works for any simple turkshead. Turn the knot so the perspective is a conventional coding and pass over any edge bight of the foundation with one over crossing. Then begin a sequence of under two-over two alternations counting both the vacant spaces ant parts of the foundation as you make the wraps. The running end of the interweave will fill these vacant spaces in a later wrap. Each wrap ends at the bottom with a single under crossing. This makes the sequence for any size knot to be O-1 U-2 X X --O-2 U-1.
This places the minor asymmetry at the bottom edge of the knot as we braid it. Notice that the parallel paths and splitting of parallel pairs as required for the interweave happen without any conscious effort on our part. Here we parallel the part on the left going up and on the right comming back down.
This is the same template with three more wraps with the same sequence for each which completes the knot. Notice that you can start at any braid entry of either knot and count the complete pattern sequence of O-1 U-2 O-2 U-2 O-2 U-2 O-2 exit Reenter U-2 O-2 U-2 O-2 U-2 O-2 U-1. I specified to begin this interweave that you should turn the foundation so that you had a conventionaly coded perspective. If you should choose to work from the sobre coded perspective you would begin with an under-1 start and use the sequence above in the reverse order ( U-1 O-2 U-2 etc ).