hey on runnin dipsys room wise would depend on how far out ur runnin them. usually 200 ft min . copper is a lot farther. but a lot of people are also runnin them to .. u can tell by lookin at their rods. i would stay min. of 75 yds to be safe . further with copper. if ur new to this and i can help call me my name is steve 315 507 7183. im up late and been fishin that llake and tribs since 79..