[r-t] Xcalax, etc

[Robin Woolley]

"..why [are] Xcalax Surprise Major and Xanthi Surprise Royal not one and 
the same method?"

It is the 2nds and 3rds place made when the treble is in 3-4-5 which is 
'missing'. This is a case of the adjacency rule.

In fact, the two are related in the same way that Cambridge S6 is 
related to Yorkshire S8 (and thus to Albainian S10 and Southwark S12). I 
think of it as the parent being 'pulled apart' when the treble moves 
between 1-2 and 3-4 for YS8, 3-4 and 5-6 for AS10, etc.)

Best wishes
R