Intensity vs Duration

Which is better?

3 x 20min INTENSE jelqing/squeezing sessions, per day.

OR

a 1/1.5 hours jelqing/squeezing workout in the afternoon, (possibly another if needed 7/8 hours later.)

I know this has been covered before but which works better for you, short and intense, or long and less frequent sessions?

I have only gained when on 2-3 workouts/day.

Sometimes I do one 1-1.5 hour session and 1-2 15-30 min sessions on a day.

A great deal of that time is about massaging up to erect between the sets, so I guesstimate that I actually workout half the time.

Don´t know if it´s like this for everyone but I have a strong feeling that it is major beneficial to “max out” the dick several times a day.

/Pan