Mod: Incredibly rude portions (over two paragraphs worth, and the type that resulted in the initial two-day visit to the Penalty Box) were removed. Seriously dude, grow up. Even if you are right, you don't have to behave like a jerk. Your BEHAVIOR is why you were banned; not for any other reason.
I called True Temper (despite knowing how stupid and borderline insulting the question is since the answer should be obvious to rational people). They confirmed what I've been saying: the Feather Flight is not a relabeled Multi Step Lite, but a lighter weight variation. It also has a slightly different bend point. The same goes for most OEM shafts--they're variations on established designs.
Anyway, I'll answer the 1 person who at least tried to make a reasonable case for the Feather Flight = relabeled Multi Step Lite theory:
Ladies and gentlemen...
Let's not get into a war over one entry in the humongous spreadsheet of shafts and their measures. Sometimes the data points don't match up from source to source.
At the GolfWorks school, we got an 11" x 17" laminated sheet - two sided - which classified all the shafts by their 4-digit MPF (Maltby Playability Factor) code. The sheet included 165 variations (A, R, S, X) across iron shaft models alone. If you look in the catalogs such as GolfWorks puts out, you'll find details on each flex variation of a shaft. Tip and butt thickness; raw weight, torque; tip stiffness; and kickpoint/bendpoint or launch profile.
For iron shafts, that's up to 6 datapoints x 165 shafts.... Possibly there's a chance for discrepancies from source to source.
The catalogs and the OEM shaftmaker site's specs tables usually match up. The club manufacturer's catalogs, however, sometimes vary from the shaftmaker posted specs. Callaway or TaylorMade might say a shaft has a medium launch, while the TT site says it has a low launch. Or, the shaft weights might vary by 5 to 10 grams.
If you find a serious data difference between source A and source B, phone or e-mail someone to get it straightened out. Or, talk to a manufacturer's rep at a golf expo.
Sure, and in this case the discrepancy was WAY beyond True Temper's "Finest Quality" tolerance of +/-2 grams. It was even beyond the +/-5 grams tolerance you mentioned ("vary up to 10 grams"). Of course I called.