HI
For most of the awkward bolts, I bought Facom rotator ratchets, I was that impressed with them I got all 3 sets, 1/4", 3/8" and 1/2"
basically its like a normal ratchet, but you can also just rotate the handle and the socket spins, its save me a lot of hassel on my S-type R, especially when doing the valley pipe, when ive done timing belts on various cars its saved me hours in work.
also using a wobble extension on the socket also means you can get the socket on the bolt at various angles
wobble extention
Facom rotator ratchet