I've never flown in an R22 and I don't know anything about them but I was really surprised when you said there were no wind limits. After a quick google I found FAA Special Airworthiness Information Bulletin, ASW-95-01 for the R22 which says.....
7. Do not fly if any of the following conditions exist: surface winds (including gusts) exceeding 25 knots, surface wind gusts exceeding 15 knots, wind shear forecast or observed, and/or turbulence forecast or observed to be moderate, severe or extreme. "Ride quality" in turbulence is a function of several factors, predominately gross weight. Relatively light gross weights make the R-22 and R-44 more susceptible to the effects of turbulence. Most notably, main rotor flapping and aircraft attitude are affected by turbulence and can lead to blade stall, abrupt control inputs in response to uncommanded attitude deviations and, ultimately, mast bumping. Two recent rotor/airframe contact accidents occurred with high surface winds, wind gusts and turbulence. At least seven rotor/airframe contact accidents were accompanied by such conditions.
This seems pretty clear so I wonder why there isn't similar advice in the POH?