On my first rod, a forecast 5wt, I just went with the recomended spacing without testing, and glued the guides on with super glue before wrapping. Did I just get lucky? I'm building a H&H IM6 8wt now. Is it necessary to test the guide spacing with a weighted line before wrapping? What are we trying to accomplish? Will masking tape hold the guides well enough? I don't think I will use the glue technique this time.