Rather than start a new thread, I hope it's OK to post on this one.
I have seen various BTDC timing points mentioned in posts for the A10 Golden Flash.
Sorry if this has been raised before but I have a BSA Service Sheet and a Haynes Manual showing 11/32" but an old BSA Instruction Manual showing 13/32".
I doubt in practice I will get anywhere near the accuracy that the difference will cause an issue but thought I would post this for interest's sake! I am going to use the majority measurement of 11/32"
Brian