Is IP vs. PIC time really that big of a deal? No matter if you log EP, IP, or MP time, you are building PIC time, which I assume is all that matters to the major carriers in terms of flight quals.
If I've read the tea leaves correctly, the three most important factors to getting hired at a major are 1) Meeting minimum requirements, 2) Internal Recs, and 3) Potential to be a good representative of the pilot group.
We're not the first military guys to apply to the majors. Sure, if your stuff is in the street, that's a red flag to the hiring board. However, are we getting too far in the weeds arguing about EP/IP/MP/PIC time?
I've got my 1500 hours of PIC time, and while that's a combo of MP/IP/EP time, the important thing is that I've met that hiring requirement.