I've had good success with the Top-Draw dip tubes, I have three and will buy more when they are back in stock. Initially I did experience the issue of "No-Draw" mentioned by Robert, especially when filling my portable cannonball kegs, I presume because of the extended draw. Then I read that the trick was in how you connect the float to the dip tube. They are connected with a SS split ring, there are two holes in the end of the dip tube that this ring passes through. The trick is to only use one of the holes. Not sure if it's completely foolproof but I haven't had an issue since I made the change at the beginning of the Summer...