I'm surprised, I seem to be alone here. I have been using Power Pro for several years on both downriggers and divers, and I love the stuff, esp. for downrigging deep and fast. I use 50 pound, however, 30# or smaller is too small to hold in a release, 50# is 12# diameter and just right. I use a Offshore heavy release and bury the line all the way into the pads, it holds a big hotspot and whatever else you want to use just fine at any trolling speed and releases right now when you get a bite. There is also no slack, so you get a good hookup. I do use a 5 foot dropper of streatchy braided nylon seine twine between my ball and my clip, and this may be why I never seem to have any break-off-at-the-strike problems. I also fight fish exclusively with direct drive and off my thumb with a Penn 109, and this prevents crackering fish off due to no line streatch. What I really like is the feel this line gives you. I also like the lack of streatch and quick hookset. Finally, for fishing diver and fish flash at B10 or in GH this stuff allows you to go down a size or two in divers while still getting to your target depth, which saves pull on your rod. Same thing for dredging the bottom for CR springers - I can use an ounce lighter lead than most folks and maintain perfect line angle. It also lasts forever as long as you are careful to trim back the first 30 feet or so every year or whenever you notice it fraying. I'm sold on the stuff.

As an aside, I use 10 pound Power Pro, which is 2# diameter , on tiny flyrods for downrigging for kokanee. I use an Offshore light release and just barely pin the stuff. A Koke will actually trip the release at hookup, and with the light springy flyrod and no lead no snubbers are necessary. My family fished a local Koke hotspot this weekend and limited in less than an hour, 17 fish hooked and 15 landed - try to beat that with any other kind of gear :p

Juggernaut is right, it is the pro release. The only problem I have is when draggin bottom, or ringing the dinner bell, the line can wrap itself around the pin a few more times, and then won't come off. You have to bring it up with the downrigger. When you get them dialed in, they are a dream. We used snap releases in Elliot bay at first, and the small shakers wouldn't release the line. We drug some of them around for quite awhile, but able to revive them. The nice thing with braid, is when reeled down tight, even if the shaker is not big enough to release the line you can see him on there and release it yourself. What is the perfect setup? Not sure if there is one!!!