I bought some of the 1" to try and duplicate the success some others had with Joe Flies on a local county lake. Filled with water, they will chunk it out there. However, I seem to have some trouble keeping the water in and the air out. And, if you push the locking pin in too briskly, they will crack and break. Plus, they can be time consuming to set up what with filling, threading, split shot to hold it in place and then finally your lure. Your split shot to set the depth must be crimped tight or the float will work its way down the line.
However, if the fish are hitting way out there and you can't reach them otherwise, they will work. And, for extra distance and to sink float faster, you can finagle some B split shot inside the float. Just another weapon in the fishing vest.
Pros: clear float, cost, effective
Cons: Water leaks out, hard to keep positioned on line
Would you recommend this product? Yes