Hmmm:
Other thread got me to thinking - it would help me enormously, as Founding Member and President For Life of the My Gunnery is teh Suxxor Club, to have a lead-computing gunsite available in the film viewer.
Even with tracers on, it's pretty difficult sometimes to figure out how and where I missed, and what I should have done better. Having a lead-computing site in the film of my (almost inevitable) failures would give an in-cockpit feel of how and where to improve.
I dunno, I guess the dot (dots? one for cannon one for mgs?) would have to be set to show path of fire at convergence distance.
Abject apologies if it's already available in the viewer and I just have'nt RTFM.