Glass bedding just assures a more positive fit with your action and your stock. I highly recommend it with wood stocks. I prefer pillar bedding with synthetics. It also keeps the vibrations when a shot fired very consistent. Basically you don't want to glass bed the entire barrel channel, just the front part of the action where it fits in the stock. The job consists of the epoxy, and a release agent. It does'n't or shouldn't take much epoxy. I do it as standard operation on any new gun. I don't do the pillar bedding, but have a gunsmith do it with synthetics. Some guns are already fitted from factory, like the browning Medallion, but its usually a poor but adequate job. As far as free floated, you just want to make sure you can slide a business card easily down the barrel and stock. All that job consists of is cutting out the inlet and revarnishing the inlet.