Oil bypass filtration systems (1994 3406E) recommended? Ecopur?

So I have a 1994 3406E CAT.

My question is, my mechanic doing my system install insisted on using a system that uses "Paper" filters instead of "Yarn style" filters.

edit: To clarify, he said the "Paper" style were preferred because they are less likely to remove the lubricating properties of the oil per Caterpillar.

I've tried doing some research to figure out what the hell hes talking about.

I asked him to install a "OPS Ecopur" system because I watched some videos and it was recommended by Kevin Rutherford.

But he doesn't know much about the filters used, I can't find it either.

Thanks in advance