How to do this blend?

 From:  roj (ROJHARRIS)
3425.10 
Hi Danny,

That looks very nice! I tried to fillet my edges like that but they wouldn't work. I've had a close look at your version and I see you'v added a tiny edge where the fillet fades out. That's a good idea!
I'd never have thought of it. There does seem to be a slight kink if you zoom in super close to that tiny edge, but I suppose if the object type shows as 'solid' then it must be a watertight object.
I'm going to have a go at reproducing your version myself so I can see if I can get the same result.

Thanks for your help on this problem guy's. I'm learning new stuff all the time from this forum.

cheers
Roger