Slipping left and right

[Rickskymaster]

I agree it best to follow the protocol in the POH, but what happens if you cannot.
I cannot find any prohibation on slips, nor can I find any mention.
I would think that the O2 drivers in country, must have found themselves in stiuations where they need to slip, and could not follow the recommended procedure.
I can think of situations, where slipping quickly reduces the airspeed, and allows me to get into an airspeed range, that would allow for lowering progressively more flaps.
The big question I really want to know, will it hurt the booms.
Is there to much stress on them for this to be anything more that an occasional method of slowing down etc.

Thoughts, pro and con appreciated.

Rick