In all honesty, Sean, I do not know because the pike have never told me.
You listen to some people saying use red line, and I have it, but does it make any difference? I have caught as many on the red line as I have on dark green line, I'm sure. I even use red trace wire,
Does that make a difference? I don't know, because i use also a brown one (Savage) and a green one (Drennan) and catch on all of them.
Red is supposed to disappear from the spectrum below 15 ft of water, but if that is the case then why is the most popular colour of boily - RED? Or is it still?
If I were you, I'd stick to a dark green braid for now and see how you get on first. Density and sinking capability is more important so choose Power Pro, but in the end they all tend to float anyway.