Just to add that one of the crimps on the lip of Doug Hnuts got pulled off by some fatty. I reclimbed it, and it is now slightly harder. The new "Brown Groove" problem mentioned in another thread is also quite good. Start sitting as per DR, then move up and left, climb the groove, and finish at the break. My guess at the grade would be 6bish.
The big crack can also be reversed to finish up Ringpull. Lots of rainy-day fun.
If you fancy an alternate approach/walk back to the car, then head out of the larger tube entrance on a small path, following it round the alpine craggy knoll (great views over dovedale, and dove holes), and down under Ravenstor into Milldale.