you guys haven't illustrated this point yet. ALL 4130 CHROMO T BARS pretty much weigh EXACTLY the same, and 4130 isn't heavy. If you really wanted to go far, you could say, the French ID bars are light by half a pound then most normal bars. (which I don't think is worth it) But yeah, pretty much all T bars weigh exactly the same.
SkyHigh
Inward
Rero
RAD (not the oversized ones)
Season
wee bars
lucky pro
District
Mutts
they all pretty much weigh the same (all of them being T bars made from 4130 chromoly, some with gussets) within the range of 2 ounces