The current always carries my sinker away

[Eli]

There are various "gripper" style sinkers available. Basically, they are either completely flat or have all kinds of protuberances designed to hold bottom. There are also pyramid sinkers which hold very well on a mud/clay/sand bottom but not as well over rocks. Pyramids also tend to twist your line a bit during the retrieve. I prefer the flat leads because they're cheap, hold bottom really well, and create virtually no resistance when retrieved.

This is the flat sinker I'm reffering to (ignore the junk swivel).


Another thing to consider is your line diameter. The thicker the line, the more it will be pushed by the current. Switch to braid if you haven't already as it has a much thinner diameter per lb test.