They weigh the same. +/- fractions with each identical shaft. True to each std. 12.9 I’ve weighed. Here’s a reference of several shafts… Revo 12.4-4.055 oz, Revo 12.9- 4.11, Revo BKR- 4.075, std. BK3-4.59 oz .035 difference between the Revo 12.9 & BKR
P.S. The balance point of the...