This is a copy/paste from a blog post I wrote a few days ago about how I resolved a couple of issues I was having with the nape of my full caps-

There are only a few downsides to wearing to a full cap versus a partial unit, and the nape area has been one of the areas that has caused me some problems.

I am happy to announce that the two problems I was having with the nape are now solved!

First, I want to say that I have never had any issues with bonding in the nape area of my full caps. I have used blue liner tape from day one, and even attaching the unit below my occipital bone I am able to get a week's worth of hold without much lift.

The two problems I was having with this area were:

1. A "hard" edge that could be detected by touch.
2. A slightly unnatural look, especially when the hair was wet.

The edge didn't bother me too much, as I overlap the tape slightly in this area which provides a decent transition, but the look in the back of the unit after leaving the gym was unacceptable. When the hair got wet in the back it revealed a clearly visible line where the knots begin. This would have been much less of an issue if the knots were smaller, staggered, and well-bleached, but with this particular unit I had to do something to overcome this problem so I got out the scissors and started cutting.

I decided to cut small triangle shaped chunks out of the base in the back to break up the knot pattern so instead of being able to see a straight row of large, dark knots, it is broken up by "V" shaped cuts which make it much less noticeable even when wet.

The side benefit to this is that it also made the nape become completely undetectable to touch. Since there isn't a straight edge of lace OR knots, you can run your fingers up through the hair on the neck and you can't feel a thing!

This was done on my latest creation, my "Full Cap Mohawk", but it will solve the same issues on a unit that stretches across the entire nape. Here are some pictures-