When do you OPK test?

Shevon • #1 Baby Grayson born May 30th, 2015. We are in love!!! #2 Baby Addison born August 16th. We are very blessed!!!
Hi ladies. I have read that it's better to OPK test between 10am-6pm. I have been testing at 11am ish and 10pmish to track my high and peak. What about you all?