Even with full realism on...
With the time at 1x, i click the (-) button... game pauses...
Do this while looking thru periscope or UZO with the range part...
and ya can actually cheat the rolling of the ship effect.
Line the bottom part up and then pause, then yer free to put the top. Then unpause, tada, you have best range estimate.
Since I discovered this, I haven't been able to not do it.
I play with full real, but this is wrong!