Why do I balloon the opposite direction?

I’m posting this as a thread just in case you guys didn’t see it on my progress report. Just jelqed for 200 reps at 40 % - 70 percent erection level. I just noticed that when I jelq instead of my glans expanding my base is expanding. I hear everyone else balloons at the upper part of the shaft, so why am I ballooning on the lower part of my shaft instead? My glans stay the same size, so basically my expansion looks like a cone shape. I squeeze at the base and move the blood up the shaft so why doesn’t my glans balloon? Someone please offer advice.