I am experimenting with only JAIs for length since a couple of weeks. I do short sessions, sometimes just a couple of minutes and sometimes longer (10-15 min) with heat when I got the time and privacy.
I do these sessions at least 10 times a day and it feels good so far. I can see a couple of millimeters in length increase in BPFSL so far but I think that one should give any change in routine a couple of months before you can tell the effectiveness.
What I want to know is if it’s better to do few stretches with longer duration (30 - 60 sec) or a lot of stretches during a day with short duration (2 sec).
In a couple of months I’ll see.
I do some jelqing as well maybe 3 -4 times a week, but these I did when doing regular stretching as well.