I'm open to C-41 & E-6; the more the merrier!
Are you open to selling any of your Ekta 64T Mike? I agree with your statement about speed loss & filtration. In fact, it seems that most people would benefit from tungsten film when outside for the very reason you stated. I mean, outside you're always going to have a surplus of light, so filtration isn't a problem, but filtering to balance indoor light just doesn't make sense.