I am very happy now.
This placement of magnets works great.
A couple forum members had talked to me about other magnet strips and that influenced how I placed the magnets.
By keeping one directly above the other it gives a better hold and the knife does not turn or spin.
Spacing the magnets the way I have horizontally may be overkill but it makes it so I can place a knife anywhere on the strip and it holds good.
The thickness of the top layer is just under 1/8" thick. This gives a strong hold on the knives but also makes them easy to remove or place on the rack. Gentle but firm, if that makes any sense.
I grabbed these knives out of the junk drawer. Before you guys brought me to the light, this is what I used.
Turning at an angle the knives still don't shift.
Another check for hold.