Found a little info on chubsuckers. It seems they are very rare in most states. In places where they do occure its ussaly in low numbers, especialy if LMB are present. One pdf I just read said "the number of lake chubsuckers ussaly declines after 2-3 years after an impoundment is filled. Some aquatic vegatation along the shore is needed to provided escape cover". Sounds like it might have the same problem as shiners, work too well as food. I am still looking and will post results.