I also feed rod's food quite heavily. My fish are all fat and happy, lol.
Heard that his food is great, not available in SA at the moment
I think that a person could start off with a smaller amount of pellets on a system that is established. One could also introduce them slowly by adding them to the system in a carbon bag for example in a high flow area for a month, just ensure you inspect them from time to time so that you don't end up with a sulphur build up. Can manually move the pellets each day by giving the bag a squeeze

and you will ensure that the pellets get saturated. This will help in that when eventually added to a reactor they don't float to the top and clog things up.
My experience is that they are very effective but extremely abrasive, have had a lot of my SPS brown out and loss of polyp extension (I don't attribute this fully to NP pellets as we have had floods lately and have not been able to do my regular water changes) but am sure it has been a shock to the tank to have these pellets in my tank.
I am hoping my tank will adapt to the new chemical profile of the setup as this method of n & p reduction / control is in my opinion very cost effective.
My opinion only - only been using the pellets for about 1 month. The reason I started using them, well after two or so years in the hobby I bought a green cap and was given a bunch of stags and digi's. I want what is best for them.
B4 I started
My cap
Digi with color
Tank when I added NP
And now nice and clear
These pics in no way give a full presentation of NP pellets, I am not recommending them, this is just my experience, if you want to try them, just do your research first. And like they say if it not broken why fix it.