The changes for the tailwheel version to the front floor are significant. The bottom longerons are in a different location compared to the tri version. I had to plan the location considering the pre-drilled holes for the longerons where they would be located if building the tri version. I decided to leave the longerons in the same location as the tri but add a second longeron to reinforce the area under where the main gear is located in the tri version. The heal channel is also in a differnt location so all the holes had to be reloated and re-drilled.