[r-t] Spliced Courses

[Fred Bone]

On 13 March 2009 at 8:36, Robin Woolley said:

[...]
> Is it possible to generate any 'mixed' *plain* courses, i.e., including
> 2nd and 8ths place methods without using any calls? (I don't think so, but
> would be glad of a proof if any - especially a counter example.)

Suppose LH 164... follows an 8ths place. Then the preceding LE is 146.... 
So LH 142... must also follow an 8ths place.
So LH 123... must also follow an 8ths place.
So LH 135... ... hmmm, there's a pattern here ...

Or am I answering the wrong question? Did you mean to include non-PB-type 
(formerly "irregular") methods?