I'm not sure if this is still done very much, but it's a good thing to know. I've seen this mentioned in older fishing books, and shown with diagrams. Some of the novice and beginner spin fisherman can learn this. Open your bail as you normally would, and make your cast. Immediately after you release the line, extend your forefinger and touch the lip of the spool. Apply pressure as the line is coming off the spool. You can apply more or less pressure as needed, to slow a cast, or make a very quiet entry. It takes a little practice, but when you get it down, you can easily slow a cast for pinpoint accuracy or a quiet bait entry. This is nothing new, and I think I've heard this mentioned by WRB and A- Jay in past threads. It works well. Some famous spin fisherman from past years that employed this technique we're Bill Dance, Charlie Brewer, and Billy Westmoreland. All experts with a spinning rod and reel. This " line feathering" can help a lot with casting accuracy.