Black Diamond C4s are the go to Cam for American Desert splitter cracks and are a great cam for UK soil.

Doubled axles give a far larger range than single axle cams making it far easier to grab the piece that will fit, when you need it quickly. The thumb loops can clipped short for Aid-Climbing purposes and when used as general cams the slings are plenty long enough to consider not using quickdraws, despite not having the marketable extendable slings of competitors.

With their great price and simple, reliable design they're a great choice in camming options.