A good road that gets better as you head into the Wolds. My favourite section is north of Horncastle - hills, sweeping bends, some tight ones and enough straights to get past slow moving caravans and tractors. Section between Sleaford and Horncastle is less interesting esp Billinghay - Tattershall, though first 5-6 miles out of Sleaford there are some great straights, but also some deceptively tight bends. First part from Grantham to Sleaford is pretty good though lots of slow moving traffic on first few miles
Quite a few nice corners, mostly medium speed bends with a few tight ones, visibility good on most of it as hedgerows are low. Be on the look out for Police as you get closer to the circuit.