Jelqing fast vs. slow method.

Hello, again. I have got few questions regarding to Jelqing fast vs jelqing slow.

Is jelqing only done by one of those (fast/slow)? So, for example proper jelqing technique would be doing it slow.
Which one is more effective?
Can I do both?
Wouldn't fast cause more blood flow than slow?

Thanks.

Fast jelqing makes my EQ go up and slow jelqing allows me to lower it without needing to take a break. I usually do a medium speed but if I need to alter my EQ to get into the optimum range I'll slow down or speed up a little bit accordingly.

I am not a medical professional so this is strictly my opinion. Slower is better for full expansion of your smooth muscle cells. Going too fast probably doesn't allow full expansion because blood is being forced out of the cells before full expansion because of the speed of the jelq. In other words I believe the blood is going in and being forced out too quickly when jelqing fast and not allowing the cells to reach maximum expansion. The longer and greater the cell membranes are stretched, the more fragile they will become.