Great work! Looks promising 
I cant help but think that the apparent 'homogenized or 'softer' differences in 'More/less likely followed/ing' probabilities within VMS vordgroups could potentially hint at vords not being whole plaintext words or some obfuscation at work beyond a standard 1:1 word to vord mapping, though I'm looking forward to seeing this analysis applied to other languages and texts.
I cant help but think that the apparent 'homogenized or 'softer' differences in 'More/less likely followed/ing' probabilities within VMS vordgroups could potentially hint at vords not being whole plaintext words or some obfuscation at work beyond a standard 1:1 word to vord mapping, though I'm looking forward to seeing this analysis applied to other languages and texts.