Heres a pic of the gearbox tailfin mounting plate that I plan on incorporating into my next gearbox reinforcement fiberglassing. I plan on using a piece of 1/16 plywood. I dont see why just glueing a ply plate like this to a gearbox and drilling your tailfins and just bolting them on wouldnt work better than just glueing the whole tailfin on the gearbox. I brok a tailfin once and for the life of me couldnt get what was left off the gearbox. Well, Im sure that wont be a problem with this mod anymore. Im taking it a step further by fiberglassing the whole thing. Besides that, With the different Heli bodies I mount to my LMH chasis, this will be a Godsend when going from different tail fin designs and colors. To let you guys know, I dont buy tail fins anymore either. I make them out of 1/8 lite ply and and cover them with monokote or paint .