I can't say for sure, but I would bet that if you got the call for an interview without the type, that it's pretty much yours to screw away. Type or no Type, it's been my experience with those that I know who work for SWA that the PD hires the person not the credentials. To my knowledge no one really has been able to crack the code as to 'who' they hire. If it were me and I had the resources to get the type to better my chances sooner than later, I would if I really truly wanted to work for them. Of course, they may not call you anyhow in which case you just spent that money for not all that much sim time.