[r-t] Odd Start Grandsire Doubles

[Robin Woolley]

Hi All,

It's Monday morning and I never have much time so a brief reply to Mark 
- more later.

Yes - backstroke finish giving 101 for example.

It seems to be true that - all 'plain' starts have an 'single' start 
'dual' ending with the 'opposite' call

(here's one: 91 bpbpsbpps)

BUT

there are some touches starting with a 'single' which have a 'plain' ending.

(here's one: 61 ppsbpp)

Best wishes
R