Prune All Branches At Once?

[jimlau]

I have a Syberian elm that is very vigorous. All branches are where they should be, so i just need to shoot for ramification. Is it safe to cut back all the branches, or should i spread them out.

The top will be left untouched as I am trying to make taller the tree.

Thanks.

(poor photo)

 

[leatherback]

One can prune all branches in one sitting