Re split image:
The horizon mirror on a real sextant of the 39-45 vintage was 1/2 clear glass and 1/2 mirror in order to see the horizon and the reflection of the body simultaneously when the index arm & mirror was rotated after capturing the body and bringing it down congruant with the horizon.
The #2 scope aka Attack scope in SH4 has a split image function used to determine distance of the target ship...I just thought some interprizing, gifted, modder might be able to swing it....wishful thinking on my part.
