Thanks Michael,
I didnt mean the .00000000001 thing. I just experienced that if the curves were different at all, that the swept surface had wiggles. Since I was sweeping it to a point there. I ended up using RebuildCurve to get my result, but I added about 80 points to be sure that that tangent area where the conic meets the line segment was true. I thought there was something I didnt know about how to delete that one point properly to get exacting results.

I've been using rebuildcurve alot lately and the new command sounds very cool and powerful. I cant wait to see it! (50 bucks to send it to me now) hehehe!

I didnt think of just putting in more knots. Good advice. Thanks for the time, more in my toolkit,
Burr