Mineral to Boiling Spring is a pretty decent float, Boiling Springs CG usually puts in at Sandy Shoal Ford, so you wont see many folks on the upper half of that float and the traffic from Boiling Springs isn't that bad. The shuttle prices were very reasonable last time I used them, but I understand that the CG is under new ownership. I would avoid 6x down to Ross Bridge. Its a pretty float, but It can be a zoo on a warm weekend. Allow plenty of time for swimming, rock throwing, crawdad gathering, etc. My girls (6&8) tend to get bored if we don't stop every 15-30 minutes.