The first is theone I prefer, mainly because it does not give you a tighter edge on the odd side.
The second will give you one edge that is tighter so you have to be careful not to pull too tight.
Here is the first:
When you get to the end of the odd count turn, do not pick up the last bead but instead go through the end bead below your current row.
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Then pick up your last bead of the current row and go through the beas below again.
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Go back through the bead you just added to put you in the correct position to begin the next row.
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For the second method, gp through the last up bead in the current row
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Make sure to visit my website Divella Delights for more tips and tricks; beautiful hand-created jewelry and hats!