On step #6 of the New Guide Concept primer deals with test casting and says the "perfect guide spacing should be achieved on the initail go around".

However . . . what if the butt guide just has to be moved to eliminate line slap or promote better casting? And moving that guide winds up being a better option than using a different height guide, what do you do to the other guides ahead of the butt guide down to the intersection guide? Would you leave them alone or try to get them on the "same plane" (or table edge) as the new butt guide location? Thanks.

You move them a little to get you "bullseye" back. you shouldn't have had to change the butt guide much so you just sightdown the guides and line them up to the chock guide like they were before. Haven't had to ever move one very far, 1/4" max maybe. Like the article said I've had to move the guides very rarely.