A key to understand the VMS

[Torsten]

It's also interesting that we see all four gallows inserted in the middle of ch, but never anything else in the middle of ch. That's a rule all of its own as well, etc etc.

See for instance words similar to 'chcKhy' as grid:
chkchy ( 6) chckhy (140) checkhy (47) chckhey (30) checkhey (10) chockhy (21) chockhey ( 5) chckhdy (13) chckhedy (11)
chtchy ( 2) chcthy ( 79) checthy (28) chcthey ( 7) checthey ( 4) chocthy (18) chocthey ( 6) chcthdy ( 7) chcthedy ( 7)
chpchy ( 4) chcphy ( 11) checphy (--) chcphey ( 3) checphey ( 2) chocphy ( 3) chocphey (--) chcphdy ( 2) chcphedy ( 3)
chfchy (--) chcfhy (  2) checfhy ( 1) chcfhey ( 1) checfhey (--) chocfhy ( 1) chocfhey (--) chcfhdy ( 1) chcfhedy (--)
shkchy ( 2) shckhy ( 60) sheckhy (30) shckhey (12) sheckhey ( 4) shockhy ( 5) shockhey ( 3) shckhdy ( 2) shckhedy ( 6)
shtchy ( 3) shcthy ( 31) shecthy (20) shcthey ( 7) shecthey ( 1) shocthy (12) shocthey ( 1) shcthdy ( 1) shcthedy ( 1)

See 'chcKhy' at the network graph of similar words for the VMS:
   

See for the usage of words similar to 'chckhy' on page f76r:
   

Why words more similar to 'chcKhy' are more frequent within the VMS and on page You are not allowed to view links. Register or Login to view. then words which are less similar? For instance 'checkhy' and 'chckhey' are more frequent then 'checkhey'. Why so many spelling variants for 'chcKhy' exists within the VMS and on page f76r?

With the autocopy hypotheses it is possible to answer this questions. Did you have an alternative hypothesis to explain this observations?