I also worked on these last night and realized that I have a few perf varieties that are not Scott listed but noted on the Romania Stamps website so I created a blank quadrille page for varieties as I find them.
One example is Scott 78 which comes in an 11 1/2 perf version and a 13 1/2 perf version. It is noted at the top of the listing as two possible perf varieties but does not assign a major and minor number. My Scott Classic Specialized from 2009 doesn't do this either. Perhaps it has changed since then.