Write the new handshape only if it is not clear.
The point or v is used on the fingers that move, usually not the whole hand.  However, when people are writing quickly from a handshape that is clearly an entire cluster of fingers as a unit, sometimes a single v is sufficient. 
ASL sign for "pity" only closes the middle finger and the second position does not need to be clear, as it really is a wiggle from open to close to open as the whole hand circles forward.
ASL sign for "fourteen"  the four fingers move as a unit.
ASL sign for "crab" has two fingers on each hand moving up and down in pairs that contact each other. 
The point is that you are dealing with a "unit" of a single finger or a group of fingers, and don't need to show separate ones unless they are separately articulated.
With the dot, treat fingers in units of movement.  Here are several examples:
Disbelief (doubt)  the two fingers close as separate fingers. 
Leao (lion) from Libras (Brasilian Sign Language) the fingers close one at a time starting with the little finger. 
Milk (ASL),  the whole hand squeezes twice so the whole hand is considered as a unit.


From: Dali balti <[log in to unmask]>
To: [log in to unmask]
Sent: Mon, May 31, 2010 7:12:06 PM
Subject: Hello!!! Question about finger movement

Hello everyone!!!!!!
Happy to post my new questions!!!!! lol
> So, my question is: how to differenciate using "v" in changing the handshape, and is it necessary to write the new handshape if it is not clear enough??????
in other words, the black point or the "v" knuckle shape, once they are on the fingers, does it mean that the movement is for all the fingers, or just for the finger/fingers on which the point/v is put??????