I have already had some tech support re this but it was suggested to post to the forum. In this example using Blend Srf in v5 and in v6 gives a different result - the v6 result being compromised with 6 extra cv’s in U direction.
That’s really strange, it works ok if you put a ruled surface between the edges and then match them in.
I think I remember someone else having a similar issue and it was down to how the trim edges of the main surfaces were created. In his case it was due to a VSR command he was using.
Hi Phil - for now, use ‘Remove shapes’ and delete the extra handles that are in the middle of the blend to get the simple variety. I’ll see if I can find out why this is the default (Extra handles) I used to know…