Pilou - Merci mon ami

Performing the Mutual Trim on my hearts curve and Sweeping each segment as you suggested got me moving forward. From there I Flowed the segments onto my ring and Boolean Diff to complete my ring model.

BurrMan - Thank you for the offer to help. I emailed the 3dm if you want to experiment. As you know, with MoI there are often multiple solutions.

Ed Ferguson