i'm looking at buying a nos 2007 iron horse mk3 frame. i notice that the 07s were spec'd with 140mm forks, the 08s with 130mm forks. . . and the 06's with both 130mm and 140mm depending on the model. does anyone know if the relevant angles changed between years? both the 08s and 07s give a 69.5 degree ht angle - if i get an 07 and use a 130mm fork am i going to end up with a steeper front end (at 69.5 degrees its already on the steep side for a trail bike)?