In reply to kevin stephens:
A few options in/around The Peak, some of which have already been mentioned.
Grit:
You could get in the queue for the ever busy Stanage Plantation traverses/lowballs circuit: The Green Traverse 7A plus all of its variations. (It's worth having a pad for the crux; it's low but I've seen people come off it out of control), Steep Traverse 6C (lowball but awkward landing, actually about 6A), Zippy's Traverse 7B (tops out but the difficulty is all at waist height), Deliverance Traverse 7A/The Full Circuit 7B, Captain Hook 7B (lowball but needs pads) and maybe Jerry's Traverse 7C+ (if you are comfortable with the penultimate move).
Cratcliffe/Robin Hoods Stride: Jerry's Traverse 7B/Jerry's Reverse 7B+(!), Scoop Slab Traverse 4 (a nice warm up for your footwork. Keep removing footholds if it's too easy)
Baslow: Lots of options on the Walnut from 6B to 7C. Truffle Pig 7A on the edge (tops out but the difficulty is with your feet about 6 inches off the ground).
Gardom's: anything on Mark's Roof. They all top out but it's quite lowball and there's usually more matting there than at an indoor wall. Also the lowball First Roof.
Secret Garden: Secret Garden Traverse 6Bish or 6C if the ankle is up to doing the mantle at the end (it is Zippatricks 7C+ without feet)
Roaches: Greener Traverse 6B, Inertia Reel Traverse 8A+, Nadin's Traverse 7A, Black Hole Start 7A, Boozy Traverse 6C+
Not quite grit but there's plenty of options at Churnet: Virgin Wall Traverse, Niche Traverse 6B, Hob Traverse 5, Ousal Low 7A+, Jill the Traverse 6B+, Low Traverse 6B. You could add anything on the Witness Block or the Block of Thebes that are all lowball and there are many more traverses that I'm sure I've forgotten.
There's loads of options for lowball traversing on the limestone:
Rubicon: Warm-up Traverse 4, Low Break 6B+, Middle Break 6A, Top Break 5, Approach Traverse 7A and you can link all of these together to make it as pumpy as you like.
Raven Tor: Ben's Traverse 8A, Powerband 7C, Staminaband 8A, Ben's Roof 7C-8A (might have step off before the last couple of moves up THFML) and possibly Perverse Reverse 7B (lower chance of coming off out of control than on Weedkiller).
Minus Ten: Minus Wall Traverse 6B+
Rheinstor/Nudas Tartan: Lower Traverse 7A, The Scenic Route 7A and countless others if you are OK falling off a lowball roof.
The P: I think the low traverse is still a project in both directions.
Pleasley Vale: Frog Buttress Traverse 5, Monks Wall Traverse 6A, Yew Tree Traverse 7A+ (bring a pad for the crux; its low but an awkward landing if you ping off)
Blackwell Dale: Jerry's Traverse/Reverse 7A+, Midsummer's Daydream 7A/+, Midsummer Night's Dream 7B/+ (bring a brush for these last two!)
Odin's Cave: The Dark Room 8A (3-D roof climbing; lowball, but needs pads)
Anston: Anything on the lowball Bullet Roof (7A-7C+: tend to involve a mantle at shoulder height) and the problems in the roof at Woody's Rock (6B-6C and 7C-8A).