Agreed,48 is fine for street riding,but for natural or even TGS it´s just not going to cut it, if you are already used to 108fw it really is big problem, if feels like ages till you get the power. Another thing is, it´s VERY heavy, I use SL freewheel on the hub, together it weights good 80g less than pro2 and that´s without sprocket and ss kit. Screw weight distribution, I don´t really care about that as bikes are rear heavy anyway so 100-200g doesn´t make too much of a difference, but over 500g for a full hub??? And finally, everyone seems to forget that rear hub is under lot less force so it´s not that hard for it to be long lasting,especially at this weight...