Cock ball bondage hike info

Hi all! About two years ago I started with doing kegels and with some succes. I have much more control of my muscles in the pelvic area. Everyday I take a half hour walk during my lunchbreak. When flexing the right muscles I can get erect and almost cum. Since a few weeks I tie my cock and balls now and then, and trying some different techniques. Maybe somewould could help me with the right technique? I am trying to fing the right answers online but since English isn't my first language and I am new to bondage, I haven't found it yet.