The only thing I can suggest is this. I grew out 1/4" of my own hair on the sides and temples and from the fold/bone (I don't know the name) down. This way you see your own growing hair on the sides and the attachment at the back is right at the fold where all the action is, this way I have no issues of attachment there at all. Look weird when the cap is off. Also, this lets you wear a baseball cap that shows hair coming out the sides and back when you're not wearing the hair piece.

I get it longer on the back then trim the lace to where I want it.