To use the homemade lightscoop, I have to hold it at about a 45 degree angle to the flash. It takes a little getting used to, but now it is very easy for me to figure out the placement (I don't even have to think about it anymore). So why do I even want to avoid using the pop-up flash in the first place? I'll let the pictures do the explaining. First, a picture of my assistant, Reeses, with the pop-up flash, followed by a picture of Reeses with the same settings using the pop-up flash with my homemade lightscoop. Both of these shots are straight out of the camera.
Although the second photo could use a bit of brightening, it is far better than the blown-out first picture. If I had played with my settings a bit more I probably could have gotten it bright enough without any need for post-processing.