Hi Matt and Onisforos
Thanks for the detailed explanation and the Git link. Today we built it into the a3 Lazy Load plugin and tested it. Very nice feature!
We have fully tested it on our own sites and it worked great so we have released it as a Feature Upgrade. This is the changelog
= 1.3.0 – 2015/06/05 =
* Feature – Added Image Load Threshold with set threshold pixel dynamic setting. Default is 0px
* Credit – Thanks to Onisforos and Matt Pain for suggesting and explaining the new Threshold feature
After you upgrade go to the a3 Lazy Load dashboard and scroll to the bottom. You will see there that we have added dynamic px setting for it.
Please give it a test on your sites and let me know if it works OK for you.
Thank you – Steve