LJ,
Remember it's age 40 AND 20 years Service to qualify for EDPs. Most people are having to extend past age 40.
If you join at 18 and complete training in 3 years (probably 4 for FJ mates) then you could easily be a CR rotary captain, ME Captain, or on your first FJ tour at 24...with a pension age of 40.
If you joined at 23 as a graduate, then you would likely be in the same position at age 29, but your AFPS15 pension age would be 43 (albeit with an 'option at 39).
I don't think my figures were too far off!
Although most generations suffered cuts, none more so than those who signed up on AFPS75 and were forced onto AFPS15.
@vin I don't think a lot of the younger AFPS75 guys will make it to a position to be offered PAS, as it will be 3 years before their AFPS15 exit point!