So having looked that the pads when i got home last night I felt that the only option was to strip them as I wasnt happy with the balance of the red when the plates were on the Reaver and looking from the front. From above it is not a massive issue as due to the size of the Reaver you will not see a perfect top down view like in the photo below, unless of course you are a giant, a small demographic I am not overly concerned about appeasing.
Red is now lovely and smooth, there was only one bit of bleeding under the masking tape at that was on the part of the Adeptus Titanicus T but I am not overly concerned about that once the metals are done and it is gloss varnished and then given an oil wash the shading created around the metals will cover that up.
I also sorted out a basic walkthough on how to do this with pictures but had no time to post before work. Will post them later.