AHAHA!
I never realized that with the split image you dont need to have the scope's horizontal line at the targt's waterline. *slaps head*
Well, I knew it would work in real life in theory, it just never dawned on me that it actually works in SH. I guess i was so turned off by the bobbing scope in SH3, that i never really tried in SH4 with it's split prism.
Can you imagine trying to keep that line stable at the ships waterline while you measure him... the horror!!
Welp. looks like im doing 100% realism now.