I am using your fine plugin and also the w3 total cache plugin.
On your plugin settings page each script has the option to move to footer and set a priority, a very handy feature. I use this for most scripts, including the ones that are not available via cdn.
However in the W3 total cache plugin, when you add a script to the minify section it gives three options for placement:
I am not sure if jsDelivr or W3 has priority on the placement of scripts. Can you help describe how these two plugins interact?