The greasy hands from applying sun screen (an absolute must now that more than 30 Nano seconds of UV exposure will result in Cancer, syphilis and a 30 year jail term), is, of course, the sole reason I cannot on sight 8a.
This is a terrible curse upon the climbing community. The Millitary / Industrial complex which has created this sickening level of polution have alot to answer for!!!
Of course none of my gear contains any petro-chemicals or synthetic materials and I walk from the old barrel I live in to any climbing sight I wish to visit. After studying under great masters for 30 years, I can, of course, now walk without actually touching the ground and so cause no errosion.......
Then again, I could be lying.....