Something I didn't understand while in the Navy was that getting the random IFR pickup isn't a thing on the civilian side. The fact TRACON does that for the military is a huge professional courtesy.
I've also consistently had SOCAL give me random approaches at some other place than what I filed to (like shooting over to Montgomery for ILSs after shooting PARs at NKX) when I had a Navy call sign, but outright tell me no when trying to shoot more than one approach at the place I filed to in a civilian plane. All of this certainly spoils military aviators and can lead to not having a plan ahead of time, as you guys are saying.
When I fly IFR now, I do a lot of filed IFR pickups in the air. Something I didn't realize until doing this is that your strip isn't in everyone's system at the same time, so if your filed departure point is in one TRACON's area, but you've crossed the line into another's before calling, the other TRACON won't be able to pull up your strip easily. I'm not smart if they can go in and search other systems (I don't think this is the case) or if they just call the other TRACON and ask that they push it, but either way, it takes time for them to get you.
When I've had this happen to me, Approach (who I called) already guessed it was me calling under a different call sign (he could see my discrete company code, I was calling with my tail number and he was calling me with my program name), said he couldn't find my clearance, and then was nice enough to reach out to Center to get my strip and then pick me up. He wasn't that busy that night, and it still took 2-3 minutes of his time.
I've also consistently had SOCAL give me random approaches at some other place than what I filed to (like shooting over to Montgomery for ILSs after shooting PARs at NKX) when I had a Navy call sign, but outright tell me no when trying to shoot more than one approach at the place I filed to in a civilian plane. All of this certainly spoils military aviators and can lead to not having a plan ahead of time, as you guys are saying.
and get my IMC clearance with LA Center and they would positively push me with my request
When I fly IFR now, I do a lot of filed IFR pickups in the air. Something I didn't realize until doing this is that your strip isn't in everyone's system at the same time, so if your filed departure point is in one TRACON's area, but you've crossed the line into another's before calling, the other TRACON won't be able to pull up your strip easily. I'm not smart if they can go in and search other systems (I don't think this is the case) or if they just call the other TRACON and ask that they push it, but either way, it takes time for them to get you.
When I've had this happen to me, Approach (who I called) already guessed it was me calling under a different call sign (he could see my discrete company code, I was calling with my tail number and he was calling me with my program name), said he couldn't find my clearance, and then was nice enough to reach out to Center to get my strip and then pick me up. He wasn't that busy that night, and it still took 2-3 minutes of his time.