Can you see the PWM on low and med?
I actually had to look up PWM. 
Anyway, I don't notice anything other than a steady low or steady medium light.
So I guess iTP A3 EOS' has GOOD PWM right?
When you look at the light output, do you notice any flickering (sort of like strobe but very subtle)?
Not at all. Do you?
Nope. Was wondering because the older models had that effect.
Good for us we have the newer 'upgraded' ones. 
I'm not really liking my low->med->high. I would rather have it start in med first.
I myself would prefer high-med-low.
I have a 10440 in mine because it weighs 4 grams less than alkaline/NIMH. On high, it's tremendously bright and gets hot within seconds. Med seems to be ok. If I were using an alkaline/NIMH, I would also like it to be high-med-low.
I don't have any 10440's yet so high using a nimh would be perfect for me. But as soon as I do get me some 10440's then I'll probably be happy that mine starts out in medium.
I'm using the blue Trustfire 10440 http://www.buyincoins.com/trustfire-10440-aaa-3-7v-600mah-rechargeable-lithium-battery-blue-4pcs-product-241.html
They fit perfectly.
Thanks for the link midieval10!
I don't notice the PWM on mine unless I wave my hand in front of it and I get a sort of strobe effect. Mine is MLH. Honestly, I'd rather have LH. Maybe HL. If I want M, I can put in a AAA battery. Fran82, the 10440 is impressive. I wouldn't use for that long at a time though. The A3 is great. I carry one every day and gave away a handful of them at Christmas.
No problem! You will be amazed at how bright that little light is with a 10440. Just don't run it for too long on high or you won't be impressed with no light coming out of it 
I have done the review, but excuse me because English is not my natal language. I used google translate.
in this moment I am correcting errors and bad photo links!
EDIT: some translating error corrected, but the photo links cant be repeared...
However, the original link is here:
http://www.forolinternas.com/viewtopic.php?f=5&t=762
You can click in the photos to size up in that link
Thanks for your review fran82, makes me want that itp even more. :)
Btw I think you had some bad luck with your F23, mine is almost as bright as some R5s I have while drawing only 0,8A (10440). I'm quite sure I got a real Q5/R2.
I have 2 F23, and both are less bright than the A3. OR maybe, my A3 is a exceptional and unique unit that produces more light than other A3´s
Both of my F23 draw 1,2A on HIGH on 10440, then decreasing down to 0,7A continuos. With Ni-Mh draws 1,3A.
Ah, the F23 LED is really a Q3, not a R2
As I said, not on mine. Maybe it's a typical case of 'later badge gets inferior emitter'. I ordered mine the first days it landed on DX.
Mines are from January and February respectively
AH!!!
I forgot to say that the manufacturer of the F23 offers this light with different emitters and different drivers:
Emitters: From xpe Q3 to xpg R5
Drivers: from single mode, 3 mode, to 5 mode
Also in ALL online shops that sells the F23, claims Q3 LED except DX, which claims R2 and is not
KD has a Trustfire F23, a AAA with a Q3
DX does not seem to have this light. They have a F22, which is a AA R2
Could you give us a link phlowcus?