Hi
I noticed a slight difference in the ferro-fibrous P stats in this book (p. 58) that differs from the FF-P rules in Interstellar Ops. Sword and Dragon says that "Calculate the normal number of Armor Points, then multiply this number by 1.12, rounding to the nearest whole number (round .5 down).
Interstellar Ops says "...prototype ferrofibrous armor is mounted in the same fashion as its production-grade Inner Sphere version. For ’Mech units, prototype ferro-fibrous armor occupies 2 additional critical slots. The rounding of the calculation is not listed but the rounding for production FF in the Tech Manual p. 55 say " the Base Armor Multipliers shown for the appropriate armor type in the BattleMech Armor Table (see p. 56), rounding the final result down to the nearest full point."
I think this slight difference in armor rounding gives the Jenner JR-7K "Grace" an incorrect amount of armor.
The Grace Record Sheet has 81 armor points. 4.5 tons * 16 * 1.12 = 80.64 If you round per the Sword and Dragon text then that would be 81 points. But if you round down per Int Ops & the Tech Manual, then it should only have 80 points of armor. Correct?
Apologies in advance if I missed something.