Lofting of circles with guide lines

Dear All,

Am trying to loft two circles that have their centres on a curve. Problem is that unless the guide line is touching the perimeter of both the circles, the loft wouldn't happen.

But for my drawing accuracy, I have to place the circles' centre at the curve end.

Attached is the video of what am trying to do

http://screencast.com/t/aSAj4DCiELp

SolidworksSurfacing