You WILL lose more fish this way, if that is something you are comfortable with then absolutely proceed with using barbless hooks. Laws notwithstanding, my philosophy is pretty simple for this stuff, fish die all the time for all kinds of reasons, and they are consumed as energy by another creature from the snooter to the pooter and absolutely nothing goes to waste, even the bones get broken down and release nutrients to be absorbed by plants and bacteria etc...now the deliberate attempt to kill and waste fish is one thing, but the occasional fish that gets hooked and bellies up later on is for all intents and purposes just another dead fish that will get consumed by the cycle of life. The only 100% foolproof method of guaranteed no dead fish I know of is to quit fishing entirely, the occasional fish not making it is the cost to play our game, and it's one that you have to square with if you choose to play, eat them yourself, or leave them to be eaten by something else, there's no such thing as wasted unless your indiscriminately killing with intent to waste.