Hello Didumos69. First, let me thank you for this community errata. It is an outstanding work. I was really impressed.
I first built box 1 with the original instructions, and despite the fact that I did not suffer from any gearbox friction issues, I was really annoyed by the gear shifting mechanism. It took too much force to move the shifter levers in my opinion and if you didn't pull the paddle to its full course, the shifting mechanism would become out of sync because the orange pieces would not rotate 90º. It was really annoying and a bad move from Lego on a 300€ set.
I rebuilt box 1 from scratch using your instructions and it was amazing! The way with which you guarantee that the levers always make the mechanism turn 90º degrees and the gear sequence limiter is nothing short of amazing. Really good work. The gearbox is also really smooth now, but to be honest, for me at least, it already was with the original build. Nonetheless, really good work. Lego should hire you :)
Now, just a quick question regarding the left over parts. After completing all the steps, I was left with a yellow cross axle extension, element id 4519010, which you do not mention in the left over part list:
There are 8 of these in total and all are used in the original instructions. However, using your errata, I count only 7, leaving one out.
This piece is used in the following steps:
Original: 19, 64, 65, 92, 124, 158, 238 and 274
Errata: 19, 27, 65, 92, 103, 124 and 158
I'm I missing something? I'm afraid I missed something.
Best regards
