Hi Guys it is possible to fit the TBU to the SLU, but it makes the warrenty invalid,because you have to cut the battle unit that comes with the SLU remove the top board then wire the TBU to the lower board.
    So before you do this i would test the battle unit first and see if its possible to make a cover, to try and equal it to the TBU,fit fins to get angle defence,and also blocks(screens) to try and get 45 degree defence.Anyone who has built a DBU should be able to do this.

  We are still finding new things about the system I would wait before cutting up a battle unit that may prove to be O.K.
 
I always thought that the Tamiya speaker was best for this system,but have been trying different speakers,and found that the tamiya speaker is good you cant hear the tracks squeek when you drive it,have found a speaker (cheap one 10w 8ohm 87mm dia mylar speaker) that  sounds good for the engine(not quite as bass as the Tamiya)hear the tracks and gun fire, both main gun and machine gun.

 I too would like more info like the specs of the SLU how much the ESC can take(amps)Maybe Tim can help by putting the specs on his website would also like to see a full wiring diagram ,on there and how different recoil units are wired up Servo recoil, Tamiya ,Hooben and heng long.

  regards pete