I understand the questions - I am not offended.
I upgraded from 1.1.0 to 1.1.1
Then installed the required firmware to run the autoexec
And I am using the 20150902-01 build.
I have done a bit more testing now and I beleive most of the issues are linked to poor batteries.
1. Battery life.
I have 8 batteries (from 350D and 400D) and it turns out that 2 of them are now faulty. Both of these are > 9 yrs old (non-canon)
It was unfortunate that I discovered this at the same time as I was testing 400+.
With good batteries I dont see a fast drain of power.
So - no battery issues. My mistake.
I have confirmed the 2 batteries are faulty - I fully charged them both and used in the 400D & 350D and they drain quickly (no 400+ involved in this test). So they have been discarded.
I used an old 1GB card to test 400+. As I rarely use this size I hadn't noticed how few shots it would hold.
The camera estimates 54 shots on a clean card (@ ISO 100, and 44 @ ISO 1600). In my intitial test I shot about 45 images and suddenly noticed that the camera was showing 7 shots left.
Since I had been copying files (and not formatting) I wrongly assumed that I was not recovering space, or 400+ was filling the card.
But, once again, my mistake sorry ..... these 1GB cards dont hold much.
My workflow now is to download with BreezeSys and then use the delete function in that software... it works as needed and I dont need to format the card. A 'delete all' option in 400+ would be nice but not essential.
3. Low battery / odd behaviour.
This is one I can't explain. It has only happened once so far. May be realted to the bad battery.
I also have the 'sensor clean on power off' enabled so it may have got stuck somehow.
But if I get a low battery again I will watch how it behaves.
4. Slow to navigate between images.
I cannot reproduce this issue. So aain, it may be the bad battery.
5. CF light staying on durin power up.
Once again - battery. I cannot reproduce this now.
I used the shutter button
I tried again with SET and it all works perfectly.
Sorry to have sent you on a wild goose chase.
I have now tried a few more features and very impressed.
I like the hand-wave trigger to avoid camera shake, but I cant seem to get the mirror lock up to work with it.
i.e. I set the camera up for HDR with AEB of 9 shots, mirror lockup enabled, and triggered by hand.
But the mirror doesn't lock up in this mode.
Is this possible - i.e. take multiple shots with zero camera shake??