Variant copy

Hello everyone,

I would like to ask you your suggestion about using or not Variant copy.

I haven't used this functionality before and am trying to figure out if or not I should use it. 

Here is the issue:

I have 1 process, and I would like to create a “to be” process that basically will follows similar steps and will have few additional steps.

Do you think  make sense to use a variant model or is better to create a new model?

thanks