Hi Charles C. ,
Dendro is a great plugin, but for this case, I would use something like Exoskeleton or even better the Fattener from Daniel Piker ( Skeleton fattener + mesh cage morph ) . It is a great tool to “fatten” curves with different thicknesses.
Have a look at the attachment,
greetings,
Bumayepillar_fattener.gh (7.9 KB)