I guess I should try to be more clear. As I understand it, I should just let the free end fall free. But I also read that with a longer piece off wood, it should be supported. I guess I feel a little "damned if you do, damned if you dont". If I leave it free to fall, it might pinch or rip, if I support it, it will pinch. I don't know what to do.
If you don't support it, the wood is likely to tear out as it falls free.
This right here is also why I use a hand saw for breaking down long stock. The hand saw won't try to take an arm or a leg.
Having the free end fall free is the best way to avoid binding. if you support at both ends you are likely to get kick back. See the following link:
For the people on this site I would avoid the last two tips, they are a little more dangerous and unnecessary for our purposes.
claydowling's advice is good but make sure the two supports closest to the cut line are within a few inches so that there is chance of kick back is reduced.
Personally, I always set my blade depth properly. I prop up the board on wood on a worktable and let the other free end fall but the fall is only 1.5" leaving little to no tear out.
One of the reasons I prefer the hand saw is the lack of kick back.