Hey Shady - good to chat again - good topic - I use a net with soft C&R mesh (no knots). For bigger fish I use a cradle with the C&R netting. Warning - don't use with lures w/trebles - you'll spend more time unhooking from the net than you will fishing. Another reason I like the cradle - fish can lay flat and fin in the water after you've removed the hook for a minute or so before the picture - helps them get their breath back after the fight. Keep your hands wet before handling the fish - don't squeeze the belly or touch the gills. Bigger fish - don't hold them vertically by the lip with your hand or lip-gripper - you can damage the mouth and jaw if they're heavy - always offer support under the mid-section without squeezing. Hold them by the tail until they're revived and ready to go - I've made the mistake of letting go too soon on a couple fish only to see them swim a bit and then start floundering in the current. Luckily I was able to wade out and right them again, but one almost washed away on me.
I'm sure most everyone's heard all this before - but it's never a bad idea to re-hash this stuff. One of the biggest things I think is to give the fish a few moments to breathe in the water after the fight before you hold them out for a photo - and a lot of people don't do that.
I know I've posted this somewhere in the past - but imagine if you were forced to run a mile as fast as you possibly could - upon crossing the finish line - you're bent over gasping for air - someone grabs you and throws your head underwater while they take pics. Give em' a minute.
My 2 cents anyway - good topic.
Oh yeah, and barbless hooks aren't a bad idea either.