I think it's pretty indifferent as to what you use to shock on a routine basis. Now, there is a difference in the PHs of the products and such but as far as whatbthey ultimately do, both recharge the bromine so to speak so that it can sanitize. My dealer gave me the "renew" or "replenish" stuff to use after each soak which is dichlor based. I kinda alternate between mps and dichlor.