More SR4 Questions, Mostly on magic, but other stuff too. Options

[sfogarty]

I have some questions on rules that we have a hard time settling.

1) Any problems invisibility-casting on a vehicle or drone? Object resistance should not apply, since the target of the spell does not resist it, but the viewers of the target.

2) Improved invisibility and cameras: Is this a mater of object resistance (in which case you need force 4), or a matter of a spell resisted by the guy or program looking at the picture through the camera? I see the former as a matter of the spell being a binary "You see him, or you don't", the later being a matter of "You see a wavering outline/can notice places where the invisibility spell isn't perfect?" Since this is a physical spell, I would assume it is the later, and the onus (with a hefty negative) is on the person viewing through the camera.

3) Do reflex enhancements offer riggers any benefit when jumped into a drone? If they are using matrix initiative..

4) How visible in the astral plane is having a spell active? Being a
mage? Casual scan, or does it require a examine in depth? (might be
able to look these up).

5) How close does a spirit have to be to use its powers? How visible
are the powers when being used? How visible are spirits in the astral? is a spirit concealing me utterly useless if there is a mage on the opposing team? (My opinion: yes).

6) Hacking a comlink: As I understand it, a comlink is a persona. The PAN is the location that you can hack into, governed by the comlink. If an alert is raised, almos tevery PAN will alert the bearer of the comlink that 'hey, something is going on.'

7) Hacking doors: how often are doors connected to the matrix? Maglock doors? Just logs, or can you open them up too?