Rhino modeling help

I am trying to model an antler in rhino, so I want to get a slight taper to it and have a domed tip. The part I am doing this to was of course done with ExtrudeCrvAlongCrv, it looks like a pipe that is bent a little bit. I have been playing with taper and its variations but not getting the result I would like. Can anyone please direct me to a tutorial or something like that which may help?

Sweep one rail and use the cross-sections to taper.

in a word

word

do that

Thanks.