Use the palomar knot.

I've used Power Pro on and off for a year now, and have relegated it to my 10'5" float rod for the reasons Kunan states above: Low stretch means instant hook-ups even on long casts, and the stuff FLOATS, which makes it quite easy to mend when bobber fishing.

That said, I've lost fish due to its low stretch properties, particularly when fighting a hot fish with a 6 lb test leader at close range--it's quite easy to snap. Once hooked a fresh summer run on a spoon and Power Pro--the fish darn near ripped my arms off! I won't use it for drift fishing or spooning.

I've had no luck using Power Pro on a spinning reel--it tends to kink up and form knots. While you may have some problems with backlashes initially on a baitcaster, in the end Power Pro is easier to pick out of a bird's nest--because it has zero memory, you can really dig at it without worrying about kinking it or nicking it like mono.

I'll stick with Maxima for all my drift/spoon fishing...