fake japanese occupation Showa overprints

I knowingly bought these fake overprints in order to study them. The mint 6c orange and 5c red are authentic and are there for comparison. The immediate giveaway are the japanese postmarks which can also be seen on the not overprinted 10c stamp.

These fake overprints were very well executed. I do not think they are hand painted as they are too consistent. I think they used a laser printer. There is an obvious difference in the thickness of the strokes. The second character is very different especially the top part. Looking closely, there is also a stray dot a small distance from the upstroke of the third character. There is definitely a lack of indentation at the back.
HAPPY CHINESE NEW YEAR!!