Misstakes are always annoying because they are potentially going to wreck the job. But in this case those extra 100s cleaned it up better. Turned out a piston for 50.36 cylinder size was hard to find so what i did was to hone the cylinder up by 4/100s and now its on 50.40 with a total difference in the bore of not more than 0.005mm so its pretty much perfect. A 50.30 piston is in the mail as we speak.
Apologies for the bad shots on the honing process. I will show this seperately in a future video.