For some reason unknown to me, I was unable to open the link for the Agen procedure, but I've looked at both Albi and Calais. I have to assume that, as holding does not appear to be separately defined, the racetrack is protected for Sector 1, 2 and 3 entries.
I can't read French so don't know how Empty Cruise came up with 2 minutes outbound timing but am prepared to accept that he's correct. That being the case, a descent from 2200 FT to 1250 FT requires a ROD of 450 FPM in nil wind, so the approach is quite flyable.
Much the same for the Calais approach, as a 2 minutes outbound timing should allow descent from 2000 FT to 1310 FT at a ROD of 345 FPM in nil wind. Should be plenty of flexibility to go steeper than that, if you end up closer to the navaid at the end of the reversal from the Sector 1 entry. All in all, this procedure seems to be readily flyable at the outbound timing of 2 minutes.
If you're going to use just 1 minute on the Sector 1 entry, you'd undoubtedly need to fly around the pattern before starting the final descent, or your ROD would likely be excessive.