references:http://simtech.sourceforge.net/tech/bhav.html i has been found a super easy method to fast conversion TSO 8003 bhavs into TS1 readable 8002 format tool is IFF Pencil 2's Hex editor this a sample: picture4 edit:sorry my mistake,parameters&locals free conversion your 8003 bhavs and enjoy PS:TSO should backward compatible 8002 bhavs,so them should can be modify directly don't need Volcanic