Although there is no absolute right and wrong, the half tone raise on 7 is more usually coupled with string 1 (i.e. - both F#s to G). The second string lower is more usually coupled with the 9th string lower. Sometimes you can get the "half stop" on the second string by adjusting the pulls until the 9th string "pick up" co-incides with the second string getting to D. The extra pressure, caused by the added tension from the 9th string, can be felt and is the half stop. The lever then continues, against the additional "weight", until both strings reach C#. These changes are useful on kneelevers 3 & 4, often on the right knee, but it is not important whether they move to left or right. The only one of these that is generally considered "essential" (loads of tutorial stuff needs it) is the second string lowering to D. Most, although I don't, then continue to C# after the half stop and some of my friends couldn't be without it.
Cliff White worked out of Little Driffield, N.Yorks around 1970's and there has been a few threads in the past about his guitars. With fairly ornate (retro?) styling, all were mechanically decent and some were very good. The differences are mainly due to the improvements he made during the time he was in production. I have only had hands-on experience of an earlier model and the bellcranks were welded to the crossrods, making a copedent change an engineering nightmare. However, I have been told that this was remedied on later guitars. Even with welded cranks, adding another change - like a fourth k/lever - should not be impossible.
