Nothing wrong with those Chris (the GR4 is my favourite) other than your choice of location, Cad West at this time of year leaves everything backlit until mid/late afternoon. Personally I do Corris or Cad East and then move with the light, Corris means 2 climbs though so it depends how masochistic you are. It comes down to personal preference of course but for me it's an area of photography where the shots are hard-won so when I get them I prefer them to be in nice light.