Mangusta (or may I call you DeTomaso( : < )-
I will post results. Lab is a secret but it will be an optical PC using the very latest equipment.
I haven't done an price shopping on the ABS filters, so let you fingers do the Googling. I would probably pay the price because the ABS filters may be the best on the market because they also remove moisture and some oxidation byproducts. They come in 3, 5 and 10u absolute ratings.
One caution for your project idea- Not all filters will work in parallel operation using the TopDog base. If it's too restrictive, there won't be any flow. Pareto does some tricky things with the TopDog base to promote flow in parallel flow operation but it's very sensitive to filters. It's not likely my Racor will work in parallel flow (too restrictive), but I'll try some time up the road. If you will hook it up as a bypass filter (low pressure return, such as back to pan, oil filler cap, etc, ... no problemo.
Will look forward to seeing your before and after numbers too, so keep us posted!