When you say harder mate i take it you mean difficultywhats harder skimming or rendering
and what do people prefer  :-?
nah mate, just read too much andy mcnab!i like both, but as i don't do a great deal of rendering, i get more satisfaction from a days rendering than i do skimming. ps . were you ever a squaddie segs? i've only ever heard ppppppp from ex services!