I dont see it being beneficial since it will grow to be the exact same as it is in the pictures before being cut. Whats the reason for topping it?
I had a run of clones I couldnt top due to the node structure pretty much just like yours. Topping to "double" my number of top colas wasnt going to work on clones with this node structure like it does on a plant from seed. It would be good for height control, but thats about it. If you are trying to get clones from a clone you should wait til the clones get a bit taller with at least 4-5 nodes.