I have only climbed in the Needles of South Dakota only once, about 35 years ago. During my 3-4 day stay, my focus was bouldering, and in particular John Gill problems. Most of them were mind numbing - I did manage two or three easier ones - and of course, I did boulder the first dozen feet of the Thimble before bailing (like everybody else).
A short, and worthwhile video ... a guy way ahead of his time!