The firmware update didn't change anything. Next trouble shooting step was unplug pedal and try reversing ring and tip. Then I decided to plug the eDrumin directly in instead of through my trusty powered D-Link DUB-H4, 4-Port USB 2.0 Hub which I've been using specifically to make sure everything is powered reliably. Now it's responding, just figured that out now and have to calibrate still.
This reminded me that I suspect port 1 on the D-Link USB hub may purposely not provide 5 volt power. I swapped the eDrumin to port 2 and it's working fine through the hub now.
Some background. I perform live on keyboards with just an Axiom 61 1st gen controller powered only by it's USB connection to the D-Link USB hub. A Behringer UMC204HD is also plugged into and powered by the same hub. The USB hub is plugged into a Lenovo laptop running Cantabile Performer.
The laptop is tweaked for performance by following Brad Robinson's "Glitch Free" guide which instructs on how to turn off all BIOS and Windows 7/8/10 power saving and CPU throttling. I then run a Powershell script I have posted on the Cantabile Forum (got it from the Spiceworks IT Admin forum) that uninstalls all extraneous Windows Store apps. I also run something called PC Decrapifier that uninstalls vendor provided apps. The laptop runs on an i5 3.6Ghz and has a Samsung SSD and 16GB of RAM. The whole rig became more reliable when I stopped plugging directly into ports on the laptop and instead used a powered hub.
My A2E drums are plugged into a backup rig that is an exact duplicate of the above that I sync from the main one via dropbox. I've been tweaking a MegaDrum I got in May this year. It took quite a bit of research on vdrums, megadrum and several other drum related forums to learn how to calibrate the pads and cymbals. They still aren't completely dialed in on the MegaDrum but playable and pretty close. I will be able to compare that experience with setting up the eDrumin after today.
Perceval over on vdrums never pulled the trigger (please excuse the pun

) on purchasing a MegaDrum so couldn't provide me a direct comparison but I decided to purchase an eDrumin based on his input and based on my experience playing around with DSP Trigger.