A shrouded airfoil, comprising: a tip; a dovetail; a suction surface; a pressure surface; at least a first suction surface shroud, the at least first suction surface shroud disposed on the suction surface, the at least first suction surface shroud including a first contoured surface and a second contoured surface and a first mating face, the first contoured surface having a first substantially concave portion and a first substantially convex portion, the second contoured surface having a second substantially concave portion and a second substantially convex portion; and at least a first pressure surface shroud, the at least first pressure surface shroud disposed on the pressure surface, the at least first pressure surface shroud including a third contoured surface and a fourth contoured surface and a second mating face, the third contoured surface having a third substantially concave portion and a third substantially convex portion, the fourth contoured surface having a fourth substantially concave portion and a fourth substantially convex portion, wherein the first contoured surface includes a first contoured section where the first substantially convex portion is adjacent to the first substantially concave portion, the first contoured section forming an angle α with respect to the first mating face, the second contoured surface includes a second contoured section where the second substantially convex portion is adjacent to the second substantially concave portion, the second contoured section forming an angle γ with respect to the first mating face, the third contoured surface includes a third contoured section where the third substantially convex portion is adjacent to the third substantially concave portion, the third contoured section forming an angle β with respect to the second mating face, and the fourth contoured surface includes a fourth contoured section where the fourth substantially convex portion is adjacent to the fourth substantially concave portion, the fourth contoured section forming angle θ with respect to the second mating face, the angles α,β,γ,θ less than 90 degrees. a tip; a dovetail; a suction surface; a pressure surface; at least a first suction surface shroud, the at least first suction surface shroud disposed on the suction surface, the at least first suction surface shroud including a first contoured surface and a second contoured surface and a first mating face, the first contoured surface having a first substantially concave portion and a first substantially convex portion, the second contoured surface having a second substantially concave portion and a second substantially convex portion; and at least a first pressure surface shroud, the at least first pressure surface shroud disposed on the pressure surface, the at least first pressure surface shroud including a third contoured surface and a fourth contoured surface and a second mating face, the third contoured surface having a third substantially concave portion and a third substantially convex portion, the fourth contoured surface having a fourth substantially concave portion and a fourth substantially convex portion, wherein the first contoured surface includes a first contoured section where the first substantially convex portion is adjacent to the first substantially concave portion, the first contoured section forming an angle α with respect to the first mating face, the second contoured surface includes a second contoured section where the second substantially convex portion is adjacent to the second substantially concave portion, the second contoured section forming an angle γ with respect to the first mating face, the third contoured surface includes a third contoured section where the third substantially convex portion is adjacent to the third substantially concave portion, the third contoured section forming an angle β with respect to the second mating face, and the fourth contoured surface includes a fourth contoured section where the fourth substantially convex portion is adjacent to the fourth substantially concave portion, the fourth contoured section forming angle θ with respect to the second mating face, the angles α,β,γ,θ less than 90 degrees.