Sorry, I missed the PIC. But that's true of just about any turbofan- PIC is better than FO. But again, he needs to view the landscape when he crosses that bridge. I am obviously not familiar with the heavy side of the Guard, but I've seen units that were fat on PIC's so upgrade took a long time. Many regionals now are upgrading as soon as you meet PIC minimums. PIC CRJ-200 will probably carry more weight than more C17 SIC time. But... I've known people hired at legacies with zero TPIC.
Again, it comes down to playing the odds and getting more blocks checked as quickly as possible.