T45,
I think most of the short courses will not take Gi Bill. I sucked it up and paid the 2700 and got it done in 2.5 days. My thoughts are to avoid HPA unless you are obsessed with flying for SWA. If you are, they have great connections and you'll get your 73 type, but you work pretty hard for 13 days straight (taking 2 weeks leave) paying hotel and rental car that whole time. Plus you burn up several months of the Gi bill. You don't need HP for DAL, UAL, or AA. In fact if you get assigned 73's at one of those, you'll still have to do your type rating again under their instruction. Probably have an easier climb in seniority at one of those too.