Gloss before and after decals, but after that take your pick, just a personal preference. Glossy looks great on sport type rockets, but I tend to lean towards semi-gloss or matte for scale or scale-like rockets. DRM is in a category all it's own, or kind of in between both of those categories, like a sport-fantasy-scale, you know? Really could go either way, you can't go wrong. (good point about the fine print on the DRM decals - a non-glare matte would make it easier to read.) Build one of each! Semi-gloss is a good in-between compromise if you can't decide, I like to use clear semi-gloss as a top-coat on cardstock rockets printed on an ink-jet printer that don't use decals.