Penis Extension Device Help

Hey. New member here! I’ve just acquired a traction device from eBay identical to the one from Size Genetics in very good quality.

My question is when I stretch my penis (approx 2-3inch flacid depending on the temperature, 6inch exactly erect) should I aim to stretch the penis to its erect length while flacid or should it only be stretching a few centimetres more than when flacid? While I wait I’ve just increased traction for a couple centimetres of stretching. Also some of my foreskin is getting caught between the noose and is hurting a little.

Can anyone enlighten me on hyperplasia? Thanks