@DYJ I've been receiving Null Reference Errors when trying to connect the procedural wings basic control surface to any wings whether they are stock, B9 or procedural etc. These in turn hang the SPH but do not cause a ctd or error log. The Debug menu shows many lines of null reference errors due to the aformementioned part (am at work atm, will be able to post pictures of the debug log later if needed). I am using other mods, but none that I would believe incompatible. Here is my Gamedata folder: Thanks again for the great mod, lowering my part count and making my space planes look all the more beautiful!