At what point is it a good practice to Drop and Add back an Article for Transactional Replication?

Hi,

We have transactional replication Setup in our company , a set of tables involved in replication needed to be reloaded on prod say about 12-13 Million rows .

We decided to drop the articles and add it back to replication so that a new snapshot for the specific articles can be generated and the transfer of data is fast and no breakage in the replication.

But what is the best practice or a threshold point for taking this route i.e dropping an article and adding it back ?

I mean 

when Is it good to go this route  i.e when the load is more than 10, 000 rows or 50.000 rows  100,000 or at what number do we start this process?

Thanks,

Jack