I was wondering if there is a an option specify distance between isocurves when extracting them, what say I’m extracting 2 isocurves on a circular surface in the same direction, is there a way to tell rhino how far apart i want them? or if i extract an isocurve in the opposite direction can I add points by distance to use as markers for extracting in the initial direction? any guidance would be appreciated 
Hi Ryan - you don’t get to specify, but you can play tricks, like, extract and isocurve in one direction, run Divide or Divide > Length to mark off that curve and then swp directions and ExtractIsocurve snapping to the points. You can snap with Int to existing isocurve intersectioins.
-Pascal
Your awesome Pascal! pretty much what I was looking for, nothing fancy just some way to setup markers to osnap to 
would be awesome to have that command on the fly or a snap distance setting but your solution is easy enough!