I think it is the throwout bearing... . Hopefully nothing major, just that, but it is still a good day's work to get the transmission dropped... I did notice when you mash the pedal all the way down, it makes a funky noise, when in gear. . let off a little bit, all is quiet. let off a little more, and it goes to engage the gear... this is the only reason I wish I still had the NV4500... this 5600 is HUGE!!!! anyways, I will keep y'all updated!
-Chris-