Omni Bases And Nason bases are Horrible to say the least
when you are working from the ground up,you need ever step to be a good quality product,saying the base is just there for looks and will be sealed by the clear is not correct at all.
the better the base the better the coverage,better Adhesion and longer all around life of the color.
i have used my fair share of cheaper bases,both Nason and Omni over the years at my repair shop.
i found right away they were junk and color matching was piss poor.
so i said well i will use only for budget all overs when i get 1 or 2,well that lasted about 1 or 2 times and i found myself asking why in the Hell would i even think about using this Junk
i am in the collision repair side and work with bodywork and primers and paints daily.
i don't use junk Filler and i don't use Junk Primer and i don't use Junk bases or clears,i have been down this road and i have felt and seen the results months to years later.
everything is about price?we all have the problem ever day with everything from groceries to Gas we put in our vehicles.
i only use Deltron Dbc base coats at my shop for all my work,yes its pricey but i have to make my work look great and sell my product after every job and it has to last more than 1-2 years
i use all SPI primers,Reducers and UV clear.
skimping on the base is just another step that is wrong in the process of painting.
i hope you take no offense to this,as I am just stating facts like a lot have already stated to you.
if you cant afford to use a Quality base you might ask yourself why?you have good Quality Primer and Clear.
i have heard great things about Pro-Spray also which i plan to try someday on something of my own,just to see what its all about.
i wish you the best,Travis