Hey !’
Those of you who build stuff like that might like this tip . When I work on train kits many of the older streamline cars are ribbed . Therefore there are times we face the same dilemna .
How to get molded on details off , while preserving the ribs . Here’s how I do it .On say the Ford Tri-Motor . I trim the items off even with the TOP of the ribs . Then I go to my wood carving kit and get my little wedge shape separating tool .
It’s shaped like a " V " gouge but has a curved tip . Gently slide it in the groovs till you are at the same depth and then move on to the next groove .be gentle and take your time .Don’t twist in either direction .
You want to go straight down the groove . Gently . Once done clean the surface with 600 grit " wet " Very Light .Wash prime and paint . Remember train cars are of a harder type of styrene than cars , planes or tanks .and YES , it can be brittle .