When do you measure?

[dros Junior Member Find all posts View Profile Close dros]

Are you supposed to measure after a session or on rest days?

[UpcomingStallion Senior Member Find all posts View Profile Close UpcomingStallion]

Whenever you feel you are at maximum EQ. Whatever works best for you.

[hadoken2 Senior Member Find all posts View Profile Close hadoken2]

Measure every day. Every time you're fully erect.

[hadoken2 Senior Member Find all posts View Profile Close hadoken2]

Just kidding...Try monthly intervals, as daily or weekly intervals are too close apart and will "play" with your ego as you may or may not see any significant increases between such short intervals.

Measure 2-3 times at max EQ and average that value for an accurate measurement.

[bem Senior Member Find all posts View Profile Close bem]

every 2 weeks, on rest days

[hadoken2 Senior Member Find all posts View Profile Close hadoken2]

every 2 weeks, on rest days

Did not read the OP post, but the one below it and didn't realize your question, OP.

You need to measure on rest day as not to influence the "STRENGTH" of your penis :]