Hexagon Hiccup

The centre panel of my little wall quilt is finished:

But it's not going to stay this way!

My original plan was to square up this centre panel by sewing straight borders over the wobbly edges, and then applique the borders.  However, there was a problem with that.

As I described earlier, I have been basting and stitching the hexagons in one step and with one length of thread.  This works great and I still love this method.  The catch, though, is that you cannot remove the basting without unravelling the whole thing.  Why would I want to remove the basting?  Because I want to open out the seam allowances to attach the borders.

I could just sew over the folded seam allowances, but I think that will add a lot of bulk, especially along the top and bottom, which will interfere with the applique.

I was explaining my problem to my parents and showed them the work, and they were amazed that I wanted to cover up the nice shapes of the hexagons at the top and bottom.  I realized they were right!  I have already modified the original pattern, so why not keep the hexagons whole and applique the centre panel on top of the borders?

So the half hexagons in the corners are definitely history, and I am also considering removing all the halves along the sides.  Plus, this will be great practice for my Botanic Roses quilt, because I have already decided to applique the centre to the borders on that quilt.

The funny thing is that as soon as I started to fill in all the half hexagons along the sides, something felt wrong.  Now I feel back on track.  But I don't think I would have understood the problem until I went a ways down the wrong path.  Live and learn!