C172S Analog and NAV III PIM Differences?

[HighFlyingA380]

I have a 172S NAV III PIM, because the only S models I flew when I bought the PIM were G1000. Now, I'm flying both G1000 and analog S models. I'd imagine the critical info regarding weights, speeds, C.G., etc. wouldn't be much different between the two. So, should I buy a 172S analog PIM, or does the Nav III PIM suffice?

 

[poadeleted20]

Rather than buying it, have you considered downloading one off the internet in pdf format and putting it on your tablet?
http://www.kstateflyingclub.com/172S Skyhawk Information Manual Searchable.pdf
http://www.sunstateaviation.com/172SIM05.pdf
...among others.

 

[Jaybird180]