One of my favorite basses is an Aria Pro Elite ll. It is a late Korean model and does not have the classic high mass Aria bridge and it is surface mounted. I feel the action could drop another 1mm or so but the saddles are already set at their lowest setting. The poly lacquer on the Korean models is much thinner than on the MIJ models. Can anyone offer me some points on tools, templates and setup to perform this job. I'm thinking that a cavity of 3mm will provide enough depth to sink the bridge and adjust the saddles not at their minimum. I don't have a lot of tools but I am thinking of getting a budget hand router for this job. Advice anyone? Step by step would be awesome Many thanks in advance Tee.