Please, where has this idea that 500hrs on type opens doors comes from?
It is totally and utterly deluded in today's market. If you're extremely lucky and willing to accept some pretty dodgy terms in some pretty dodgy places you might be lucky enough to get a job in some crap place. And I do mean you would be lucky.
It will stand you in good stead if you manage to keep current until things do pick up in a few years, but for now its pretty tough.