Well, I didn't actually have a .L translation for my FF/REW button. I do have "LS" translations for some macros (Long press while shift lock active) but as for un-shifted, here's what I have:

AD5242.M=20df10 ; Prev Track / Rewind
AD5243.M=20df11 ; Next Track / Fast Forward

In previous versions I didn't need explicit .L translations. I just added them and FF/REW work, but the delay seems significantly longer. Like with the Rio Remote's FF/REW there seems to be a 1s delay, with v72 it seems to be 2s.