The last time I used an invisible zipper it came out with a fabric "hump" at the bottom. It was a (poly) wool, lightweight, bias cut skirt with lining (bias cut too). I thought I did everything right, but no matter how many times I tried it didn't work out just right. The only thing I didn't do was hand baste the zipper in while the skirt was on my body, because I can't and don't trust my mother or husband.
Could it be because of the curve of my waist to hips, which is pretty curvy, or could it be something that I did wrong? Every other time I used an invisible zip was down the side of the bodice or the back, never the side hip.
The skirt is gorgeous otherwise, I just wore a fancy belt slung over my hips to hid the hump. I made the skirt for my company christmas party.
I can put it on and take a pic if you don't understand what the problem is.
TIA!
Michelle Giordano