In reply to NessMM:
Can you outline your experience outdoors so we can help? You probably know this but outdoor grades are often a good bit harder than indoors, especially in the summer warmth, and the range of styles will be different. Things might be closest to indoor style on grit roofs but you could do with more than one mat with a partner who knows how to spot on those.
Burbage South valley boulders have a great range of problems across the grade ranges but you might need more shade and less rounded holds.
Post edited at 12:39