The weather is finally(!) starting to break and so I've started on my sunwear sewing, beginning with Vogue 8390. I went with the halter version to wear with this green and fuchsia below-knee skirt that I bought in England a few years ago. As there are already lots of reviews about this pattern on Pattern Review I will limit my comments to the changes I made.
I noticed that many used a stretch band to finish the neckline. Instead I folded over the seam allowanced and topstitched with a double needle. I recommend using a walking foot for this part so as not to stretch out the fabric while sewing. The IDT system on my Pfaff worked this beautifully. I used the same method to turn the hems; fold under the seam allowances and topstitch with a double needle. The secret to avoid tunneling with a double needle is to drop your tension a number or two. Frankly I'm a little jealous that this top looks better on Gertrude than on me.