Quick update…
The kapton tape mod didnt work. It actually made the drive not spin up (made it worse) on the one I tried it on. Having said this, I booted the machine up on an Ubutunu live CD and am attempting to change the drives block size via sg_format. None of the drives have finished the format yet, so still dont know if it will work or not but I will report back. Drives have been formatting for 12 hours thus far and are 78% complete (6TB 7200rpm).
EDIT - UPDATE:
Using sg_format in Ubuntu fixed the block size! The drives work in Windows and TrueNas now. This is awesome! Ironically, I ran across this post from Wendell explaining the exact issue and fix. Not sure why it didnt show up when I was searching the site, but here it is in case anyone else stumbles across this post: