After 6 months of SH3 I'm making the slow gradual move to manual targeting. I'm interested in perhaps doing some calculations on paper...have to see how time consuming these alternative methods are. Currently at 74% for now but I like the outside views so I don't believe I'll ever be at 100%.
For example, I just downloaded the longer torpedo wake mod and that needs an outside view to be appreciated. There's a cool video out there somewhere.
Cheers