I've used sink tip on rivers and loved it. I've also used in on lakes and have had no problem. Nice thing is I throw it into the pocket of my vest and when I'm in my float tube and realize I left the spare spool in the truck, I cna still get down deep. Sportsmans Warehouse has a tip that goes about 3"/Second and starts at 12ft and you can modify to size. It does hinge a bit, but on stil water I dont care.
Orvis also has tips and they don't hinge as badly.

The best time to go fishing is when it's raining and when it's not