To say that modifying any given airframe in the quest to improve it is a no no would be a real setback in terms of future products and progress. I think most of the shared techniques and method developed by modelers to improve there models is part of the fun and skill development that make this hobby so exciting.To say that one should only use the available items sold over the counter to do there improvement and not attempt to alter or change the appearance or shape of their model because it will take away from it's stock value or somehow invalidates what it is makes no sence .As they say necessity is the mother of invention and to some speed is the necessity modifications are the inventions. FJ stock or FJ modified it's still an FJ or TJ or MJ . For the modeler that has the skill and techniques to alter and improve their plane it's a showcase and share their ideas and skill and is extremely rewarding and those that are still learning how to this forum is loaded with tons of info and helpful people to assist in your modification and ultimate growth in this hobby. Just my 2 cents happy flying to you. Still working on this, does it still look like a TJ I am sure it will fly a lot better than a stocker Woody