Jelqing pressure and pi's

As a newbie I have had doubts about my jelqing technique mainly because there is some information regarding jelqing that I still have not found. I am unsure how effective my jelq technique is because as I jelq upwards I feel blood rushing downward. My question is, is this normal? I know that blood has to circulate eventually but should blood be rushing downward throughout the whole jelq motion or should no blood pass through your grip until the end? Also I’m wondering if pi’s are necessary to grow. I have better erections and a easier time getting them but other than that no other pi’s. After about a month and a half should I be looking out for anything?

When you jelq, you can feel blood running from your base towards glans as your hand move. You may try to hold the base with left hand, and check the hardness just behind the glans with right hand index-thumbs, then jelq at 3 seconds, you should feel that your right hand index-thumb is expanding and feeling slightly harder as blood is pushed. Once you feel that, then it’s the way you should jelq.

You are having better and easier erection, it show positive PI. Maybe after month and a half, you may further sign such as flacid gain, less turtling and so on.