Ok what's the double palomar? Just two passes threw the eye instead of one?

I think the Double Palomar is just 2 passes of your overhand knot, before you pass the loop over the hook.. It should already be doubled through the eye, for a palomar.

I am primarily a saltwater fisherman.  The biggest difference between fresh and salt would be dealing with heavier cover in freshwater, and the fish in saltwater have the potential to be bigger, but more open water.

I'm in favor of any knot that works well and can be tied easily, I use the identical knots in both fresh and salt, no deviation.  I always use a leader in any venue, my knots are a basic clinch knot for mono, copoly and leaders, braid gets an improved clinch, a double wrap if targeting offshore species and a double wrapped loopknot. I do not use the loop for jigs, as I'm using a leader it's the ordinary clinch.

 

What SirSnook said. SD jam for fluoros, but I use fluoros only as a leader.

For jigs and t-rigs I like the palomar knot.  For cranks and spinnerbaits I like the clinch knot.