I have a hard time believing also until I tried it myself let's take MX80 (BP 292~ 293 mm) for an example against BS10 (BP 295 ~ 296 mm) which is more head heavy which one do you find more powerful ??? it's the MX80 right? MX80 is a new version of BS10 on steroid. it has more muscle without sacrificing the speed they both have the same frame design which is diamond shaped only the frame profile are different ... octablade versus sword blade and for another instance SW35 BP is only 296 ~ 297 mm compare it to Yonex Volric / Armotec series which BP are 300 mm ++ now who dare to say that SW35 has got less power than YY Voltric or Armotec series ???