Mike - as part of the kit, can I suggest you provide the connectors and trifuricon pins as mandatory (not just recommended)?

I do intend to provide connectors and pins BUT "trifuricon" types are not available to me and neither are polarising pegs (well they are - but at stupid prices).

I will supply housings and standard pins - note my use of 2 x 10 pin connectors rather than a single 20 pin for J3 - I found it far more managable than a single 20 pin connector - the board can accept both types. I have also marked the board with "J3-L" and "J3-R" and my connectors will have the stickers on them as pictured.