With my electric seats w/ lumbar it is impossible for me to see full tach in a correct driving position. Reciently drove in a Sport seat equiped 996 and was able to obtain a much lower seating position and see the full tach and surronding bezel.
Do you see all of your tach?

 

Yes, I see all of the tach, just can't see the oil pressure gauge. 6'1", electric seats all the way down, steering column pulled out full.