I'm glad you mentioned railguns. One of the reasons my missile tech is so behind is that I focussed on railguns, so they might be a better use of space than AMMs and launchers, though it seems like it might be a more efficient use to make dedicated missile frigates - with AMMs or not - and keep my railguns on faster corvettes that will have a higher tracking speed to take down missiles. I still need to do a lot of tweaking, I'm glad I posted my first missile frigate design here even though it sounds like they were woefully under-engineered and my missile tech was far too low for them to be really effective. It's great to get all this useful feedback.