I'm glad to see you have an engineer's level and are not relying on a construction level to align you saw. As you have discovered, the cast iron table will settle. The larger SCM saws have a center support to help counter the sag, but there is no suitable place in the SC2C to attach a support. The four bolts that attach the cast iron table to the chassis affect the twist of the cast iron table. Shimming the chassis corners to help level the table will also affect the twist over time. I just looked at my saw, and I have about the same number of threads exposed at the bottom of the locking nut for each of the studs that attach the cast iron table to the chassis. However, there is at least 10mm of space between the chassis and the scoring blade lateral adjuster, unlike your saw at 14:10. The scoring blade height adjustment on my saw looks similar to yours.
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I'm glad to see you have an engineer's level and are not relying on a construction level to align you saw. As you have discovered, the cast iron table will settle. The larger SCM saws have a center support to help counter the sag, but there is no suitable place in the SC2C to attach a support.
The four bolts that attach the cast iron table to the chassis affect the twist of the cast iron table. Shimming the chassis corners to help level the table will also affect the twist over time.
I just looked at my saw, and I have about the same number of threads exposed at the bottom of the locking nut for each of the studs that attach the cast iron table to the chassis. However, there is at least 10mm of space between the chassis and the scoring blade lateral adjuster, unlike your saw at 14:10. The scoring blade height adjustment on my saw looks similar to yours.