> You can change the boards to 2x7 and use IDCs with each 2 
> wires in parallel.

Sigh, the daughters are premade and can not be changed. I can change the
board they plug into, but it has to match the daughter...

> You can change to 2x4 and use normal IDC, with 1 pin for key.

Again, wouldn't that be nice? Honestly though, there probably isn't room on
the board considering where it has to fit.

> 1-row IDC connectors exist but I don't know where to get 
> them. They go with flatcable that has the wires spaced out to 
> 2.54mm. Some are used in consumer AV equipment. Someone 
> wanted to know what a (pictured) Stucko connector was this 
> week, you might want to check that avenue, as there are many 
> connectors like that with IDC male and female on cable, and 
> many are SIL, even with 7 pins in a row. IDC cables take a 
> few seconds to assemble each. A low volume assembler will 
> likely oblige.

Man, I sure wish I could fine those! I have searched just about every way I
can think and I can't find any source. All the IDC connectors I can find are
DIL. 

I tried googleing for "stucko connector" and found only two entries, neither
of which led to any purchase info.

> But do not skip the final test on the cables, 
> the initial failure rate on IDC cables is relatively high.

Ah, yes. Thanks for the warning. Then it wasn't just me all the times I've
made IDC cables and they have had bad connections in them...

> 
> hope this is useful,
> Peter P.
> 

Thanks Peter, much appreciated.

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