Ive been killing borg cubes effortlessly for the past few hours as I have discovered the Hold near-immunity buff does not work.
To start with I VM2 a borg cube then sit between 9 - 10k stationary shooting with cannons as soon as the global cooldown for VM is over I fire VM1 at the cube, much to my suprise.. It works everytime.
The near-immunity is nowhere as "near" to Immunity as it describes,Ii would suggest changing the buff received after being VM'd to "Hold-Immunity" and giving a 100% chance to resist VM while its active.
This would explain why there have been reports of chain VM occuring in pvp.