[BUG?] Quantum Fail (IC v1.00)

I think its already known and covered but i built the Quantum boots and they are frikkin AWESOME! but there appears to be some false advertising. It CLEARLY states the the quantum boot NEGATE ALL FALL DAMAGE entirely but when when i jump from my floating sky fortress i get hurt with 7 hearts of damage at this point im thinking WTF was that?!?! how? what? im confusled CREEPER!! s**t BOOM. so i was wondering if this is a bug or intended

PS One of my first mods and probably my last

at the moment im usein zepplin (works fine hardly any bugs worth mention) wirelessredstone (havent had any bugs or conflictions with this) and IC2 w/ preques

PS there are no added modloaders everything runs on IC2 preques