Yes, thin washers on top of the pillars can help when the pillars don't touch the action. I have hogged out around the pillars so that a 1/4" brass washer will fit on top. I thinned the washers to the correct thickness on sandpaper. Then I installed the action with the washers between the pillars & action & torqued down the screws to make the washers conform to the shape. I Epoxied the washers on top of the pillars. I put marker on the action, installed it, & "Demeled out where it touched the stock. This set the action up about 1/32", allowing a little more space for the Epoxy bedding. Worked well I thought. Good Luck :) ! ... Jim