Some like slinkies. I have some and use them occ. but prefer the feeling of good old lead. Usually 1/4". Keep fishing... you'll get it. Soon, a quick look at the water and you will know how much to put on. The clearer the water,the less bottom contact that is necessary. As the water gets more and more colored, the more important it is to slow that bait down and get it in their face and give the fish a little more time to see it and grab it. When the tapping stops and the pulling starts. Set the hook! It feels diff. Set the hook at whatever does'nt feel right.
You can continually keep adjusting your lead, or if your lazy like me. Adjust your cast, up or down stream to get the feel you like. Unless its really snaggy. Then I use more lead and don't cast upstream. You can also spool out some line at the end of your drift if the water is fast and you want too keep the drift going, provided ther is'nt someone close below you.
Use some shrimp oil. I like the gel. Might help.
If you don't like crowds and you fish spots where you might not have too much company. Never pass up the head or tail of the drift. Earlier in this post it was mentioned to head for the fishy water in the drift and that is very good advice if there is other two legged predators in the area. Before you go... hit the head and tail cause maybe knowone else has. You might get a reward.
One more thing...Some times you have to leave the fishing that is close to home and travel to where the fish are.
Just my two cents.... Good luck!