I have the USO swing out (cause I thought it looked cool), the plain old Sinclair, and the Flatline Ops
swing out model.
Once I got to about 45 years old focusing on a level or cosign indicator proved about impossible without switching to reading glasses.
Moving the ACI and level to the far side of the scope makes it focus-able and the swing out level sits higher than the turrets so I can see that without getting too bent out of shape. When stored you can't see it behind the turret, but those are the sacrifices old farts have to make.