Originally Posted by
Jiggle
I did some experimentation on this with a 24h rear wheel. Non interlaced, the nds spokes on the outside of the flange had a lower tension than the ones coming from the inside of the flange. Interlacing them, the tensions evened out to the average of the high and low. Because the tension on the nds is low anyway, I chose to interlace to reduce the risk of the lower tensioned spokes coming loose.
It sounds like you could have achieved the same thing simply by loosening every other spoke a bit and tightening every other spoke a bit. I am surprised that it wasn't the inside (heads out) spokes that were a little looser as those have a shorter run to the rim than the outside (heads in) spokes.