I've had a fun afternoon trying to get my car working as it used to and I've had no luck

What I had 2 months ago:
25D
Mechanical advance springs removed and tie wired locked
Timing set by Accuspark blackbox
Electronic points set & coil

I've had the car running recently using points and mechanical advance, but I want to get the blackbox working again and go back to the module as the mechanical advance curve isn't right for my car.

What is working and driving OK now:
25D
Mechanical advance
Points and the same coil

I have tried a number of combinations today and I'm trying to figure out why it won't work..
1) Points + mechanical advance = works OK but the curve is not exactly right
2) Points + no advance (locked out) = idles very smooth and stays right on the base timing
3) Points + no advance + blackbox = idles nicely at base timing (10 degrees) but the advance isn't right and I can't drive the car as it breaks down above 2-3000rpm

4) Electronic module + no advance + blackbox = idles nicely at base timing (10 degrees) but the advance isn't right and I can't drive the car as it breaks down above 2-3000rpm
5) Electronic module + no advance = nothing, won't start. This is straight after it runs with the blackbox, which is programmed to add no advance at idle, so it should just work.

I checked the program in the blackbox again today and everything there is still the same.

Any ideas would be welcome

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For the benefit of other punters, this black box used to be mine.

Sounds like you have both a faulty ignition module, and a fault in the black box.
When Chong's Accuspark black box failed it exhibited similar symptoms on the run back from Rylstone. So he bought a CB performance one.

If it won't fire without the black box in circuit, I reckon the ign module is toasted.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.