I think it's wrong in the sense that, 1. most manuals recommend not just red to red, but start with one battery (which one, I forget) and 2. ground to the frame, not to the dead negative.  (I saw, and agree with, your comments on that above.)  I had fun recently, dead battery, bought a charging pack, tried to boost, probably f'd up getting a good ground (I tried a dozen times.) then had my girlfriend call CAA.  He came, red to red, black to black - bammo - car's running.  GF pretty much insisted that I ask him what I was doing wrong - ah, do I have to? - and he said basically, ground to frame is nice in theory and maybe adds a small sliver of safety, but it's hard to get a good ground, black to black is fine in the real world.  You know, except for a very small chance the battery explodes, blinding you in one eye and horribly scarring you for life while your GF runs off with the CAA guy.  Again, my point is that I shouldn't be allowed anywhere near jumping a car.