I didnt have that issue, though if memory serves me i think there was something about the rail that needed adjusted to make it line up, but as far as stable, its been rock stable and good.
I’m 6’6 so a part of me wants to torture myself and remove the seat and add the 2" extensions to get my legs to be at a better angle with the pedals… i almost can bump my hands on my legs when turning the yoke extreme.
I do have rails on the pedals, but its nearly at full extension.