The idea is it goes on thick, so thick it actually looks like you obscured details, but then it will shrink

you actually want to kind of glob it on rather than doing thin coats

around the 3 minute mark here is a sample of priming with it

it is pretty counterintuitive to the normal practice of doing very thin layers and kind of shocking how thick it looks

[MEDIA=youtube]cNHV3LBke9U[/MEDIA]

or this one around the 7 minute mark

[MEDIA=youtube]ecvtqElCeg8[/MEDIA]