The Air Force has the same cyclic in the direction of roll blurb in our checklist as well, I guess it's a way to get the rotor stopped given a roll.
If you're rolling, which the 60 is going to do, the rotor is going to stop one way or another. I'm surprised that both the AF and Army pubs have the same thing, because here's what the 60S NATOPS has to say about it:
"The sequence of events necessary to successfully conduct an immediate landing/ditching demand prior coordination
and briefing. After a water landing, the aircraft tends to sink nose down and roll unpredictably to either side within
10 seconds. Depending on available power and rotor speed, the PAC may not be able to arrest these motions with
collective or cyclic application. The aircraft may maintain some degree of buoyancy in the fuel cell transition section
(approximately 2 to 5 minutes) after water landing."
If you're in a 60 and there's enough water for it to roll in, expect it to go over. Again, trying to control the roll just seems to me like time that could be better spent doing something like this:
* 1. HABD — As required.
* 2. ICS/HUD cords, DMK —
Disconnect/remove.
* 3. Door/window — Open/jettison.
* 4. Place hand on known reference point.
* 5. Harness — Release.
* 6. Exit helicopter.
After egress:
* 7. Swim clear of helicopter and inflate LPU.
I fully agree with your final point. If you can't get a dunker, make a SWET chair and train your guys for the HADB/HEEDS bottles.