i just installed a brand new nexus-8, red band premium hub on my bike. for the most part the hub shifts smoothly. however, when i freewheel in 3rd and 4th gear and then begin pedaling again the gears don't catch immediately. sometimes it takes 1 or 2 pedal revolutions to catch. is this normal? is there a way to fix this? i have a nexus 7 and this has never been a problem.