I've used AK products on a couple of vechicles and I wouldn't bother with the filter, after all other effects I don't think it will be very noticeable.
Here is a jagdpanzer painted first with vallejo middlestone
Then the dark yellow wash in the recesses and so on, and then tidied up.
And then chipping, streaks, weathering, decals and so on and so on...
But on the other hand, why not give it a try