the thing to do is to land the a/c then recentralise the cyclic and shut down as normal, likewise the startup.
while most machines may land on fairly steep slopes, shuting down and leaving it there is another matter! (wind down slope blowing it over/ off the hill etc)
the lpc slopes are usually mounds at an airfield and therfor a little unrealistic , but do make my job easier ( slope into wind of a known angle)
obviously never land tail up the slope which should discount the probability of tail contact
something else, i think you are a R22/R44 pilot(?) , when solo (in the '44 especially), if you have a strong tailwind the a/c will take off as if you were nose up a slope, a strong headwind , if very light will cause the a/c to sit very tail low( low enough for the stinger to touch if the wind is strong enough) so it is not just a slope landing or take off that is being tested