Chad,
One of the old tricks with walnut stocks when glass bedding was to stiffen up the fore end with some metal under the barrel. When you're hogging out the action area for glass bedding, open up the barrel channel too (you can use aluminum pillars or just make 'pillars' of glass between the bottom metal and the action). Cut deep groves out from the bottom of the channel toward the bottom right and left corners of the fore end. Then glass some metal tubing or other stiffener in there when you bed the action. Old V-8 push rods used to work great, small, long and stiff. Some guys liked arrow shafts or just solid bars. Try to go from just in front of the recoil lug to just before the front swivel stud.
When you bed this way the interior (side against the action, barrel, magazine and floor plate) are sealed by the epoxy. The exterior is sealed by the finish of your choice. (Shiny BDL Varmint is a great contrast to all my matte tactical finishes).